tooth

Definitions

  • Dog's-tooth Ornaments
    Dog's-tooth Ornaments
  • WordNet 3.6
    • n tooth a means of enforcement "the treaty had no teeth in it"
    • n tooth toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell
    • n tooth something resembling the tooth of an animal
    • n tooth one of a number of uniform projections on a gear
    • n tooth hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense
    • ***

Additional illustrations & photos:

Section of a Tooth Section of a Tooth

Webster's Revised Unabridged Dictionary
  • Interesting fact: 1 in 2000 babies are born with a tooth that is already visible
    • Tooth A projecting member resembling a tenon, but fitting into a mortise that is only sunk, not pierced through.
    • Tooth (Nat. Hist) An angular or prominence on any edge; as, a tooth on the scale of a fish, or on a leaf of a plant
    • Tooth (Zoöl) Any hard calcareous or chitinous organ found in the mouth of various invertebrates and used in feeding or procuring food; as, the teeth of a mollusk or a starfish.
    • Tooth Any projection corresponding to the tooth of an animal, in shape, position, or office; as, the teeth, or cogs, of a cogwheel; a tooth, prong, or tine, of a fork; a tooth, or the teeth, of a rake, a saw, a file, a card.
    • Tooth Fig.: Taste; palate. "These are not dishes for thy dainty tooth ."
    • Tooth One of several steps, or offsets, in a tusk. See Tusk.
    • Tooth (Anat) One of the hard, bony appendages which are borne on the jaws, or on other bones in the walls of the mouth or pharynx of most vertebrates, and which usually aid in the prehension and mastication of food. "How sharper than a serpent's tooth it is
      To have a thankless child!"
    • Tooth To furnish with teeth. "The twin cards toothed with glittering wire."
    • Tooth To indent; to jag; as, to tooth a saw.
    • Tooth To lock into each other. See Tooth n., 4.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Colgate claims "Tooth Fairy" as a registered trademark.
    • n tooth The topography of the tooth, as now described, is shown in the cuts.
    • n tooth A roughened surface, as of a paper prepared for pastels.
    • n tooth In masonry, one of the several projecting ends of stones or bricks already built into a wall and left at an unfinished end of it to facilitate the fitting of another piece of wall to the first one.
    • n tooth A hard (horny, dentinal, osseous, chitinous, calcareous, or silicious) body or substance, in the mouth, pharynx, gullet, or stomach of an animal, serving primarily for the apprehension, mastication, or trituration of food, and secondarily as a weapon of attack or defense, and for a variety of other purposes, as digging in the ground, climbing, articulation of vocal sounds, etc. In man and mammals generally teeth are confined to the mucous membrane of the premaxillary, supramaxillary, and inframaxillary bones, and true teeth are present throughout the class, with a few exceptions. (See Edentata, Monotremata.) True teeth existed in Cretaceous birds, as the Archæopteryx, Hesperornis, and Ichthyornis; no recent birds have teeth. (See cut under Ichthyornis.) In reptiles, batrachians, and fishes teeth are the rule; in these classes they may be not only on the maxillary bones of either or both jaws, but also on the palate-bones, pharyngeal bones, vomer, etc. Chelonians are devoid of teeth, their horny beaks answering for biting, as is also the case with birds. True teeth are usually attached to the bones of the jaws by being socketed in pits or grooves called alveoli, this mode of articulation being termed gomphosis. In reptiles, etc., the attachment to bone may be more intimate, and may occur in several ways, whence the terms acrodont, holcodont, pleurodont, thecodont, etc. True teeth in vertebrates are enderonic structures which develop from odontoblasts, and consist chiefly of a substance called dentin, to which may be added cement and enamel; which hard structures, as a rule, are disposed about a pulp-cavity, filled with soft tooth-pulp, or the nutrient and nervous structures of the tooth. This cavity may close up or remain wide open; in the latter case, teeth grow perennially or for an indefinite period. (See Glires, Rodentia.) Dentin resembles bone in most respects, and differs especially in the fineness and parallelism of the tubules which radiate from the central cavity. Ivory is a variety of dentin. The hard tissues of teeth are sometimes intricately folded (see labyrinthodont, with cut); but individual teeth are seldom compounded (see, however, Orycteropodidæ). Teeth of monotremes, when present, are horny and not dentinal. There may be one or several rows of maxillary teeth, which successively come into position, as the molars of the elephant, or are simultaneously in position. as is the rule. In all mammals true teeth are confined to a single row, upon the bones above mentioned; and in none are there more than two sets of teeth. Mammals with only one set of teeth are termed monophyodont; those with two sets, diphyodont. In diphyodont mammals the first or temporary set of teeth are termed milk-teeth; these are sometimes shed in the womb; the second set are the permanent teeth. According to their special shapes, or their special seats, teeth of diphyodonts are divided into three sets—incisors, canines, and molars. An incisor of the upper jaw is any tooth situated upon the premaxillary bone; an incisor of the under jaw is any tooth of the mandible which opposes a superior incisor. An upper canine is the single first or most anterior tooth of the supramaxillary bone; an under canine is the tooth which opposes this one, and on closure of the mouth passes in front of it. A molar tooth is one of the back teeth, or grinders. Molars are divided into false molars, premolars, or bicuspids, and true molars; the premolars being those which are preceded by milk-molars, the molars proper being those which have no predecessors. Thus, the permanent dentition of a diphyodont mammal differs from the milk-dentition by the addition of true molars. This classification of the teeth enables us to construct convenient dental formulæ. (See dental formula, under dental,) The incisors are generally simple, single-rooted, nipping or cutting teeth, whence the name (but see soricident, with cut). The canine is likewise a simple tooth. but one which in the Carnivora, as a dog or cat, is lengthened and even saber-like (the name is taken from its condition in the dog, and retained whether this tooth be actually caniniform or not). The molar, grinding, or crushing teeth usually have more than one root or fang, and more than one cusp or prominence upon the crown; they are hence called bicuspid, tricuspid, multicuspid, etc., as the premolars (bicuspids) and molars (multicuspids) of man; their crowns are variously tuberculous, giving rise to special descriptive terms, as bunodont, symborodont, bathmodont, selenodont, mastodont, etc., and also bi-, tri-, quadri-, quinque-tuberculate, etc. One molar or premolar above and below, in carnivorous quadrupeds, is specially modified with a sharp crest which cuts against its fellow of the other jaw like a scissor-blade; such a tooth is termed sectorial or carnassial. A tooth (incisor or canine) which projects from the mouth is termed a tusk or tush, as in the elephant, walrus, narwhal, wild boar and others of the pig family, and the fossil saber-toothed cats (Machærodontinæ), (See cuts under Monodon, saber-toothed, and tusk.) A tooth may be peculiarly folded upon itself to serve as a channel for the conveyance of a poisonous fluid, as in the rattlesnake: such a tooth is termed a fang. (See poison-fang, and cut under (rotalus.)A tooth is commonly divided into a crown, a neck or cingulum, embraced by the gum, and a fang or root—the latter, which may be multiple, being socketed in the alveolar process of the jaw. Any animal's set of teeth, or the character of that set, constitutes its dentition. Decay of the teeth is caries, and a decaying tooth is said to be carious. The scientific study and description of teeth is odontology or odontography. In pursuing this subject, see the various words above italicized, and many of the cuts cited under skull, as well as those under Desmodontes, maxillary, palate, Pythonidæ, scalpriform, and supramaxillary.
    • n tooth In Invertebrata, one of various hard bodies, presenting great variety of position and structure, which may occur in the alimentary canal from the month to the stomach. Such teeth are always ecderonic, cuticular, or epithelial structures, as the numerous teeth upon the lingual ribbon of gastropods, as the snail. These are true teeth, of chitinous structure, very numerous, and very regularly arranged in cross-rows each of which usually consists of differently shaped teeth distinguished by name (as median, admedian, uncinal, etc.), and the whole character of which is important in classification. (See odontophore, cuts under radula and ribbon, and various classificatory terms cited under radula.) Various hard tooth-like or jaw-like projections receive the name of teeth, as certain chitinous protuberances, called cardiac or gastric teeth, in the stomach of the lobster, crab, etc.
    • n tooth In zoology, a projection resembling or likened to a tooth. Specifically— A horny process of the cutting edge of the beak of many birds, as the falcon and shrike. See cut under dentirostral.
    • n tooth In botany, any small pointed marginal lobe, especially of a leaf: in mosses applied to the delicate fringe of processes about the mouth of the capsule, collectively known as the peristome. See peristome, Musci, and cuts under cilium and Dicranum.
    • n tooth Any projection corresponding to or resembling the tooth of an animal in shape, position, or office; a small, narrow, projecting piece, usually one of a set. One of the projections of a comb, a saw, a file, a harrow, or a rake.
    • n tooth One of the tines or prongs of a fork.
    • n tooth One of the sharp wires of a carding-instrument.
    • n tooth One of a series of projections on the edge of a wheel which catch on corresponding parts of a wheel or other body; a cog. See cut under pinion.
    • n tooth plural In a rose-cut diamond, the lower zone of facets. They form a truncated cone-shaped base for the crown.
    • n tooth In veneering, the roughness made by the toothing-plane on the surfaces to be glued together to afford a good hold for the glue.
    • n tooth Figuratively, a fang; the sharp or distressing part of anything.
    • n tooth Palate; relish; taste, literally or figuratively. Compare a sweet tooth, below.
    • n tooth Keep; maintenance.
    • n tooth To one's face; openly.
    • n tooth Straight against: noting direction: as, to walk in the teeth of the wind.
    • n tooth In the face or presence of; before.
    • n tooth The processes or serration of the mandibles of any insect, as a stag-beetle.
    • tooth To bite; taste.
    • tooth To furnish with teeth: as, to tooth a rake.
    • tooth To indent; cut into teeth; jag.
    • tooth To lock one in another.
    • tooth To teethe.
    • tooth To interlock, as cog-wheels.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: One in every 2000 babies is born with a tooth.
    • n Tooth tōōth one of the hard bodies in the mouth, attached to the skeleton, but not forming part of it, developed from the dermis or true skin, their function primarily the mastication of the food: the taste or palate, relish: anything tooth-like: a prong: one of the projections on a saw or wheel
    • v.t Tooth to furnish with teeth: to cut into teeth
    • n Tooth a small drink of spirits, &c
    • ***

Quotations

  • William Shakespeare
    William%20Shakespeare
    “How sharper than a serpent's tooth it is to have a thankless child.”
  • Gene Fowler
    Gene Fowler
    “Perhaps no mightier conflict of mind occurs ever again in a lifetime than that first decision to unseat one's own tooth.”
  • Janeane Garofalo
    Janeane Garofalo
    “I guess I just prefer to see the dark side of things. The glass is always half-empty. And cracked. And I just cut my lip on it. And chipped a tooth.”
  • Thomas H. Huxley
    Thomas%20H.%20Huxley
    “Time, whose tooth gnaws away at everything else, is powerless against truth.”
  • R. Venning
    R. Venning
    “Worldly riches are like nuts; many a tooth is broke in cracking them, but never is the stomach filled with eating them.”

Idioms

Fight tooth and nail - If someone will fight tooth and nail for something, they will not stop at anything to get what they want. ('Fight tooth and claw' is an alternative.)
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Long in the tooth - If someone is long in the tooth, they are a bit too old to do something.
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Sweet tooth - If you have a sweet tooth, you like eating food with sugar in it.
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Etymology

Webster's Revised Unabridged Dictionary
OE. toth,tooth, AS. tōð,; akin to OFries. tōth, OS. & D. tand, OHG. zang, zan, G. zahn, Icel. tönn, Sw. & Dan. tand, Goth. tumpus, Lith. dantis, W. dant, L. dens, dentis, Gr. 'odoy`s 'odo`ntos, Skr. danta,; probably originally the p. pr. of the verb to eat,. √239. Cf. Eat Dandelion Dent the tooth of a wheel, Dental Dentist Indent Tine of a fork, Tusk.

Usage

In literature:

Hang your mirror on a nail in the tree at convenient distance above the shelf, and your tooth-brush on another nail.
"On the Trail" by Lina Beard and Adelia Belle Beard
Sprinkle with salt and pepper inside and out and skewer into circles with tooth-picks.
"How to Cook Fish" by Olive Green
Their round glad faces, minus a tooth here and there, smile up at you from under big umbrellas.
"Green Valley" by Katharine Reynolds
You went to a dentist and pointed out the tooth to him.
"The Concept of Nature" by Alfred North Whitehead
The tooth was far back and broken, and the gum was greatly swelled.
"With Kitchener in the Soudan" by G. A. Henty
I am Assha, and you know of the wrath of Assha and how it ate up Twist-tooth, the outlaw, when he came in with his evil men.
"The Time Traders" by Andre Norton
It is always wise to retain every tooth you can until extraction is practically compulsory.
"Vitality Supreme" by Bernarr Macfadden
All the arches are decorated with dog-tooth mouldings.
"The Cathedral Church of York" by A. Clutton-Brock
It did not need an expert eye to tell that they were human-tooth marks.
"Ray's Daughter" by Charles King
The mouldings were of great delicacy, and were enriched with dog-tooth ornament.
"Bell's Cathedrals: The Cathedral Church of Saint Albans" by Thomas Perkins
His shoulder blades throbbed like an aching tooth.
"Tom Slade Motorcycle Dispatch Bearer" by Percy Keese Fitzhugh
A hard left connected with his mouth, and he spat out a broken tooth.
"Man of Many Minds" by E. Everett Evans
These piers support the Early English arches, with dog-tooth ornament large in the interior, small in the exterior.
"Bell's Cathedrals: The Cathedral Church of Carlisle" by C. King Eley
No compromise was possible, and so they went at it tooth and claw.
"The Æsop for Children" by Æsop
Poor Rose once got a swelled face on account of a tooth that she wouldn't have out.
"Priscilla's Spies" by George A. Birmingham
Have you got a bad tooth?
"Trapped by Malays" by George Manville Fenn
The chief temple was one built to contain the tooth of Buddha.
"My First Voyage to Southern Seas" by W.H.G. Kingston
He was very partial to the use of the lancet, and quite a terrible adept at tooth-drawing.
"The Lighthouse" by R.M. Ballantyne
This is not the case, but it is certainly necessary that the point of the tooth alone should touch the pallet.
"An Analysis of the Lever Escapement" by H. R. Playtner
The Mexican flashed a white-toothed smile at the sizzling steak, took one whiff of the coffee and slid from the saddle.
"Oh, You Tex!" by William Macleod Raine
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In poetry:

The lance and the lyre,
The water, the fire,
The tooth of oppression,
The lip of desire!
"The Ancient Elf" by James Stephens
When in this world's unpleasing youth
Our godlike race began,
The longest arm, the sharpest tooth,
Gave man control of man;
"The Benefactors" by Rudyard Kipling
There was an Old Woman of Leith,
Who had a sad pain in her Teeth,
But the Blacksmith uncouth,
Scar'd the pain from her tooth;
Which rejoic'd the Old Woman of Leith.
"Limericks: The History of Sixteen Wonderful Old Women" by Anonymous British
The warder he quakes, and the warder turns pale,
The shroud to restore fain had sought;
When the end,—now can nothing to save him avail,—
In a tooth formed of iron is caught.
"The Dance Of Death" by Johann Wolfgang von Goethe
There is the Thought beneath whose vampire Tooth
The Soul outshrieks at such unseemly Sooth:
The Solemn Bore still waits beyond the Grave -
Ah, let me stay and taste undying Youth!
"The Rubáiyát of Omar Khayyám Jr." by Wallace Irwin
Quick! the reptile in me shrieks,
Not the soul. Again; the Cross
Burn there. Oh! this pain it wreaks
Rapture is: pain is not loss.
Red of heat, the tooth of Death,
White of heat, has caught my breath.
"The Song Of Theodolinda" by George Meredith

In news:

Leo Has His Tooth Pulled…with a CROSSBOW .
Almost everyone has a sweet tooth, and I very much enjoy dark chocolate .
On a damp, cloudy Friday night at Iowa Park, the home team fought tooth and claw against Decatur.
I finally made it through Santa Claus, the Easter bunny and the tooth fairy.
It is reported that in the unenlightened year of 1972, angry audience members fled in disgust from the American premiere of Sam Shepard's "Tooth of Crime" at the McCarter Theater in Princeton, N.J.
Wisdom of Having That Tooth Removed.
CNN's Elizabeth Cohen reports on a surgery where a tooth was used to save a woman's sight.
A Sweet Talkin' Sweet Tooth at Pnk.
Recent studies, meanwhile, have revealed that flossing might be one of the simplest ways to ward off tooth decay.
Portland is the largest city in the US that has yet to approve fluoridation to combat tooth decay.
Local sugar shack feeds the community's sweet tooth.
Ian McEwan's spy tale: ' Sweet Tooth '.
' Sweet Tooth ' by Ian McEwan is a spy novel, but not a thriller.
Grand Valley residents headed to Palisade to shop and satisfy their sweet tooth at the same time.
VIENNA, Austria – Thieves with a huge sweet-tooth have driven off with 18 tons of chocolate in Austria.
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In science:

Monotonicity Lemma PC (x) is a decreasing function of the length, ℓk , of the tooth Tk for any k ≥ 1.
Random walks on combs
Let Tn be the tooth of C at n (which may be empty).
Random walks on combs
Let L0 denote the distance from the root to the first (non-trivial) tooth and let Li , i ≥ 1, denote the distance from the ith tooth to the (i + 1)st tooth.
Random walks on combs
We shall refer to p(x) as the probability that a tooth is long.
Random walks on combs
Let RL denote the generating function for first return to the root for walks that do not move beyond the (L − 1)st vertex on the spine, i.e., they do not reach the vertex where the first tooth appears.
Random walks on combs
Note that we have excluded the possibility of a tooth of zero length.
Biased random walks on combs
Let KC (t; n, ℓ) denote the probability that the walker on C , having left r at t = 0, is at point ℓ in tooth Tn at time t.
Biased random walks on combs
The spectral dimension when ǫ2 ≥ 0 and ǫ1 ≤ 0 Here and in some of the sections to follow we will need to sum over the location of the first long tooth to determine the spectral dimension.
Biased random walks on combs
The results for ǫ2 < 0 are intuitively obvious and, as we have proved, apply for any model with identically and independently distributed tooth lengths.
Biased random walks on combs
C is the location of the first infinite tooth of C .
Biased random walks on combs
Thus, with an appropriate re-labeling of vertices, the graph Z is obtained from the infinite connected component of G by replacing each “tooth” in that “comb” by a self-loop.
Spectra of large random trees
Our main result is valid for a wide class of tooth length distributions thereby extending previous work on random combs by Durhuus et al.
Continuum Random Combs and Scale Dependent Spectral Dimension
We will find it convenient to say that a vertex on the spine with no tooth has a tooth of length 0.
Continuum Random Combs and Scale Dependent Spectral Dimension
So far we have considered combs in which the distribution of tooth lengths has been governed by power laws or double power laws.
Continuum Random Combs and Scale Dependent Spectral Dimension
In this section we extend the results of the previous sections to the case were the form of the tooth length distribution is left arbitrary.
Continuum Random Combs and Scale Dependent Spectral Dimension
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