dilator

Definitions

  • WordNet 3.6
    • n dilator a surgical instrument that is used to dilate or distend an opening or an organ
    • n dilator a drug that causes dilation
    • n dilator a muscle or nerve that dilates or widens a body part
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Webster's Revised Unabridged Dictionary
  • Interesting fact: Experiments conducted in Germany and at the University of Southampton in England show that even mild and incidental noises cause the pupils of the eyes to dilate. It is believed that this is why surgeons, watchmakers, and others who perform delicate manual operations are so bothered by noise. The sounds cause their pupils to change focus and blur their vision.
    • Dilator (Anat) A muscle that dilates any part.
    • Dilator (Med) An instrument for expanding a part; as, a urethral dilator .
    • Dilator One who, or that which, widens or expands.
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Century Dictionary and Cyclopedia
    • n dilator One who or that which widens or expands; specifically, a muscle that dilates; a dilatator.
    • n dilator A surgical instrument, of various forms, used for dilating a wound, a canal, or an external opening of the body.
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Quotations

  • Jean Baudrillard
    Jean%20Baudrillard
    “Boredom is like a pitiless zooming in on the epidermis of time. Every instant is dilated and magnified like the pores of the face.”

Etymology

Webster's Revised Unabridged Dictionary
See Dilate

Usage

In literature:

Looking up, I saw Tete Rouge stooping over me with his face quite pale and his eyes dilated to their utmost expansion.
"The Oregon Trail" by Francis Parkman, Jr.
He was surprised to see her eyes dilate, then glow with fire.
"The Lone Star Ranger" by Zane Grey
His brow darkened, his thin nostril dilated a little.
"The Professor" by (AKA Charlotte Bronte) Currer Bell
What had happened to Rose was the dilation of her vision.
"Rose O' the River" by Kate Douglas Wiggin
But why," says the Hofrath, and indeed say we, "do I dilate on the uses of our Teufelsdrockh's Biography?
"Sartor Resartus The Life and Opinions of Herr Teufelsdrockh" by Thomas Carlyle
A strange surmise made her eyes dilate.
"The World Set Free" by Herbert George Wells
Her face was white, her eyes dilated with horror.
"The Sea-Wolf" by Jack London
And then, nostrils distended, eyes dilated, hair bristling in helpless rage, arose the long wolf howl.
"The Faith of Men" by Jack London
The Jew dilated at first on the harmlessness and usefulness of the Jews.
"The Research Magnificent" by H. G. Wells
Her dilated eyes were fixed upon him.
"The Virginian" by Owen Wister
A louder roaring came out of the shadows, closer than before, and he saw A-ya's eyes dilate as she clutched at his knee.
"In the Morning of Time" by Charles G. D. Roberts
Then a great burst of wind, the mother seemed to have drifted away, the child's eyes were black and dilated.
"The Rainbow" by D. H. (David Herbert) Lawrence
White faced and with dilated eyes she watched that struggle.
"Valley of Wild Horses" by Zane Grey
He looks every inch the winner, with his eyes flashing, his nostrils dilated.
"Jolly Sally Pendleton" by Laura Jean Libbey
And Ruth, watching with eyes dilated with horror, saw it yield with a sucking sound, and saw Kay disappear within it.
"Astounding Stories of Super-Science, November, 1930" by Various
Dilated pupils and violent rages, as in London.
"Shadows of Flames" by Amelie Rives
His eyes were horribly dilated and he made a despairing gesture towards her.
"Marguerite de Valois" by Alexandre Dumas
The nostrils of his hawk-like nose dilated furiously as if they snorted battle.
"Regina or the Sins of the Fathers" by Hermann Sudermann
Rameses' eyes flamed, his nostrils dilated, there was a roaring in his head.
"The Pharaoh and the Priest" by Alexander Glovatski
He obeyed limply; his eyes were dilated, fixed and staring.
"First Person Paramount" by Ambrose Pratt
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In poetry:

Pale Proserpine came groping round,
Her pupils dreadfully dilated
With too much living underground,--
A residence quite overrated;
"The First Fan" by Oliver Wendell Holmes
The little hand falls from his shoulder
All nerveless, the blue eyes dilate,
A shuddering sigh, then the baby
Is waiting to open the gate.
"Opening The Gate For Papa" by Madge Morris Wagner
Her dark, dilating eyes expressed
The broad horizons of the west;
Her speech dropped prairie flowers; the gold
Of harvest wheat about her rolled.
"The Singer" by John Greenleaf Whittier
VI. I'd rather feel my heart dilate
With pity, and affection's glow,
Than drink with selfish joy elate,
Of pleasure's brightest streams that flow.
"" 'Tis said, that friendship's but a name." " by Mary Ann Carter
What joy dilates the Devil's breast,
Wide as the east is from the west!
As he relates, before my face,
How oft I've sinn'd — the time and place.
"The Unhappy State Of The Ungodly, After Death" by Rees Prichard
Steepling snake in that contrary light
invades the dilate lens of genesis
to print your flaming image in birthspot
with characters no cockcrow can deface.
"Sonnet To Satan" by Sylvia Plath

In news:

2 Regarding our 27% spontaneous preterm birth rate in controls, we should emphasise that we did not exclude women with very short cervical lengths (only women who had cervical dilatation or visible membranes).
It provides optimal balloon dilatation and significantly lowers complications.
Michigan legislature set to vote on dilation and extraction abortion ban.
The use of a telescope in sinus balloon dilation .
Although they are caught somewhere in a limbo between underground grit and Kanye's ubiquity, Dilated Peoples has still found their niche in today's hip-hop culture alongside fellow West Coast talents like Jurassic 5.
Unlike J5, though, Dilated Peoples are chronically troubled by weak rhymes and repetitive hooks.
The Duckling 's dilated blue pupils and wiggling tail suggest studied cuteness, while the Pigeon's pointy wings and scornful eyelids show comical aggravation.
Emphysema is defined as dilation of the ends of the airway in the lung.
This dilation is permanent and occurs from the destruction of the lung tissue that is responsible for the exchange of oxygen and carbon dioxide.
It's a device, which restricts the heart from continued dilation or expansion and helps it return to normal.
Former Arizona Wildcats center Channing Frye has developed a dilated cardiomyopathy, an enlarged heart , and will not play this season for the Phoenix Suns.
The Suns said Frye has developed a dilated cardiomyopathy, a condition discovered during an echocardiogram by team cardiologist Dr Tim Byrne.
Entellus Medical One-Year Study Results Reaffirm XprESS Multi-Sinus Dilation Tool Safe and Effective in Treatment of Chronic Sinusitis.
Harrison's Bird Foods presents Avian Enzyme , a source of live, naturally occurring enzymes that aids digestion in birds suffering from chronic pancreatitis, malabsorption syndrome or proventricular dilatation, the company reports.
Biliary Balloon Dilator Delivers Procedural Efficiency.
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In science:

Scaling invariance, densities, symmetries. A PDE is dilation invariant if it is invariant under a dilation symmetry.
Symbolic algorithms for the Painleve test, special solutions, and recursion operators for nonlinear PDEs
To this purpose, following Vergne and Brion , we would like to consider the D-H integral of the form I (k ; y1 , y2 ) = Zk∆ where k∆ is the standard dilated simplex with dilation coefficient k6 .
New Models for Veneziano Amplitudes: Combinatorial, Symplectic and Supersymmetric Aspects
Optical tubes have been rebuilt in INVAR to reduce thermal dilatations (these dilatations cause defocus since they change the distance between the primary and secondary mirrors).
Site testing in summer at Dome C, Antarctica
Thus Ut is a unitary dilation of e−itΥ , and Ut · U ∗ t is a dilation of etM .
Reduced and Extended Weak Coupling Limit
In this section we discuss how to construct subspace wavelet sets using a kind of “induction” process, i.e., using well known facts discussed in the previous section on smaller dilation sets acting on a smaller frequency set and then extending those to our bigger dilation set and frequency set.
Wavelet sets without groups
Layer dilation. - As we shall see, in contrast to the frictional coefficient, the dilation of the granular layer is sensitive to the grain size.
Friction and dilatancy in immersed granular matter
D , where the symbol D represents the dilatation generalized to include gravity as in the work of ; the energy being zero, the Hamiltonian can be identified with the dilatation.
Time and Entropy from Semi-classical Tunneling of the Cosmological Scale Function
We analyze long (> 2 s) BATSE bursts and estimate total width corrections for trial time-dilation factors (TDF = [1+zdim ]/[1+zbrt ]) by time-dilating and redshifting bright bursts.
Calibration of Tests for Time Dilation in GRB Pulse Structures
The dilatancy angle describes the propensity of a granular medium to dilate under an applied shear.
Criticality of the "critical state" of granular media: Dilatancy angle in the tetris model
The upper part of the cell moves only if the medium dilates so that the direction of the motion forms an angle ψ , the dilatancy angle, with the horizontal direction.
Criticality of the "critical state" of granular media: Dilatancy angle in the tetris model
Starting from p = 1, where one has a dilation with an angle of π/4, the dilation angle reduces until 0 (for p = pR ). A further reduction of p brings the system in a subcritical regime where only a finite layer of thickness ξ// ∝ (pR − p)−ν// along the y -axis is mobilized and the system compactifies.
Criticality of the "critical state" of granular media: Dilatancy angle in the tetris model
Then ψ : Σ′ → M belongs to UV ,ε if such a κ exists with maximal dilation over Σ \ V less than ε and with dM (cid:0)ψ(z ), ϕ(κ(z ))(cid:1) < ε Recall that the dilation measures the failure of a map between Riemann surfaces to be holomorphic.
On the holomorphicity of genus two Lefschetz fibrations
Definition 2.3. A DDE is said to be dilation invariant if it is invariant under a scaling (dilation) symmetry.
Symbolic Computation of Conserved Densities, Generalized Symmetries, and Recursion Operators for Nonlinear Differential-Difference Equations
We see that left dilations relate full product systems to E0 –semigroups, while right dilations of faithful product systems are synonymous with nondegenerate faithful representations.
Nondegenerate Representations of Continuous Product Systems
Technically, these notes where we show that every faithful product system admits a right dilation, is very similar to Skeide [Ske07], where we constructed a left dilation for every continuous product system of correspondences over a unital C ∗ –algebra.
Nondegenerate Representations of Continuous Product Systems
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