• X-ray focus tube
    X-ray focus tube
  • WordNet 3.6
    • n tubing conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
    • ***

Additional illustrations & photos:

Larynx, Trachea, and Bronchial Tubes Larynx, Trachea, and Bronchial Tubes

Webster's Revised Unabridged Dictionary
  • Interesting fact: Due to the shortages of lead and metals during World War II, toothpaste was packaged in plastic tubes and have been ever since
    • Tubing A series of tubes; tubes, collectively; a length or piece of a tube; material for tubes; as, leather tubing .
    • Tubing The act of making tubes.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The microwave oven was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.
    • n tubing Specifically, a thin steel pipe or tube used to line the bore of a deep well for water, gas, or air to prevent the bore from getting out of line or caving in, and to keep water and other foreign matter from getting into the well from the sides of the hole. It is thinner in gage than boiler-tube or pipe.
    • n tubing The act of making tubes, or providing with tubes.
    • n tubing A tube or tubes collectively: as, ten feet of tubing.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: The Mount Horeb Mustard Museum which is located in Wisconsin has the biggest collection of prepared mustards. They have approximately 4,000 different jars and tubes from all over the world
    • n Tubing the act of making tubes: tubes collectively: material for tubes
    • ***


  • Earl Wilson
    Earl Wilson
    “Money in the bank is like toothpaste in the tube. Easy to take out, hard to put back.”
  • Shirley Williams
    Shirley Williams
    “No test tube can breed love and affection. No frozen packet of semen ever read a story to a sleepy child.”
  • Harold Robbins Haldeman
    Harold Robbins Haldeman
    “Once the toothpaste is out of the tube, it's hard to get it back in.”
  • Norman Mailer
    “The difference between writing a book and being on television is the difference between conceiving a child and having a baby made in a test tube.”
  • Source Unknown
    Source Unknown
    “Wise are they who have learned these truths: Trouble is temporary. Time is a tonic. Tribulation is a test tube.”


Down the tubes - If something has gone down the tubes, it has failed or been ruined.


Chambers's Twentieth Century Dictionary
Fr.,—L. tubus, a pipe.


In literature:

Tubes free, convex, white, then dingy color, mouths of tubes very small and round.
"Among the Mushrooms" by Ellen M. Dallas and Caroline A. Burgin
Then the food goes on into the next part of the tube, which has become narrow again.
"The Child's Day" by Woods Hutchinson
I met J. M. Belin, a manufacturer of tubes used in flying machines.
"A Journey Through France in War Time" by Joseph G. Butler, Jr.
The tube is raised or lowered until the level of the water inside and outside the tube is the same.
"An Elementary Study of Chemistry" by William McPherson
Of course, the tubes in our receiver over there are too small?
"Spacehounds of IPC" by Edward Elmer Smith
The big power tubes cut off, and their acceleration ceased.
"Islands of Space" by John W Campbell
Open the bottom tubes.
"Lessons on Soil" by E. J. Russell
National Steel Tube Cleaner for boiler tubes.
"Scientific American, Volume XLIII., No. 25, December 18, 1880" by Various
A second trip had to be made to bring the gas tube.
"The Seed of the Toc-Toc Birds" by Francis Flagg
A slender tube pressed firmly, uncompromisingly, into his back to give the answer to his question.
"Astounding Stories, August, 1931" by Various
That the bubble has energy may be shown by leaving the end of the tube open.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3" by Various
The tube inside is wet.
"Soap-Bubbles" by C. V. Boys
A moment later Kennedy caught them in a sterile test tube and sealed the tube.
"The Social Gangster" by Arthur B. Reeve
The processes of bending large tubes, making U-tubes and spiral tubes, are more difficult operations, and will be explained in Chap.
"The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame" by W. A. Shenstone
They consist of fine tubes, with globe-like coils at their deeper extremity.
"A Treatise on Physiology and Hygiene" by Joseph Chrisman Hutchison
The arteries are elastic tubes capable of much stretching and abuse.
"Arteriosclerosis and Hypertension:" by Louis Marshall Warfield
Next he produced a short curved glass tube, to each end of which was attached a strip of flexible rubber tubing.
"Etidorhpa or the End of Earth." by John Uri Lloyd
The fuse is a tube of cotton filled with gunpowder, and it burns at the rate of about two feet a minute.
"Marvels of Scientific Invention" by Thomas W. Corbin
Connect A and B by a tube.
"Hawkins Electrical Guide, Number One" by Nehemiah Hawkins
In the case of the incandescent tube of the fixed burner type, the moment of ignition will depend upon the length of the tube.
"Gas-Engines and Producer-Gas Plants" by R. E. Mathot

In poetry:

He chokes the infant throat with slime,
He sets the ferment free;
He builds the tiny tube of lime
That blocks the artery.
"Religio Medici" by Arthur Conan Doyle
"Or float across the tube that HERSCHEL sways,
Like pale-rose chaplets, or like sapphire mist;
Or hang or droop along the heavenly ways,
Like scarves of amethyst.
"Honours -- Part I" by Jean Ingelow
At length on his stepping backward a pace
The light of the tube lamp fell on his face,
It was white as if with unspoken fear,
As he turn'd and said, "Bob, come over here."
"Jim Dalley" by Alexander Anderson
The souls that voyaged the azure depths before thee
Watch with thy tireless vigils, all unseen,--
Tycho and Kepler bend benignant o'er thee,
And with his toy-like tube the Florentine,--
"A Welcome To Dr. Benjamin Apthorp Gould" by Oliver Wendell Holmes
Mistaken Marskman! I defy
Your impotent artillery;
Your level'd tube I value not,
Nor tremble at the threaten'd shot;
When the fair Lady who sits by,
Shoots darts more fatal from her eye.
"To A Gentleman: Sitting Next to a Young Lady presents a Pop-Gun to the Author" by Samuel Bowden
In a madhouse heard I an ancient man
tube-fed who had not said for fifteen years
(they said) one canny word,
senile forever, who a heart might pierce,
mutter 'O come on down. O come on down.'
Clear whom he meant.
"Dream Song 21: Some good people, daring & subtle voices" by John Berryman

In news:

British fashion seems to be going down the tube - the subway, that is.
Heavy tubes and shallow sandbars in Puerto Escondido.
Wellesley Massachusetts Public School officials are finding themselves in hot water these days since a new You Tube video was released showing a field trip of a the school's sixth grade class saying Muslim prayers at a local mosque.
The oven can process aluminum tubes up to 20 feet in length.
Jason Kempin/Getty Images for You Tube.
The first step was to remove the C-clips and pull the axles out of the tubes.
The tubes are connected via a series of patented one-way valves.
Sleep apnoea sufferer being treated by CPAP (Continuous Positive Airway Pressure) via mask and air tube from machine (iStockphoto).
We use the factory fuelfiller tube extension to place the fill tube in the correct location.
The Nordenmatic 500 tube filler from Norden (Branchburg, NJ) fills collapsible, 1- to 300-mL tubes measuring 50 to 150 mm in length and 10 to 50 mm in dia.
It's an early Supreme 85C Tube Tester designed to allow customers to test their own vacuum tubes .
Replace steel brake tubes with BrakeQuip's non-rusting EziBend tube .
If you want to put a variety of butts into an aero profile tube , we can do that for a one- tube order.

In science:

Fig. 6.— Panels (a) to (d): The magnetic shear field, Bz (G), and magnetic field lines (constant contour intervals of Az ) at four different times for the high tension flux tube (Tube 1) emerging into a field-free corona.
Tests of Dynamical Flux Emergence as a Mechanism for CME Initiation
Panels (e) to (h): The same but for the low tension tube (Tube 2).
Tests of Dynamical Flux Emergence as a Mechanism for CME Initiation
Fig. 14.— Panel (a): Height of the flux tube centers (dotted lines) and tube/dipole separatrices (solid lines) for the three flux tubes emerging into a dipole of medium strength (B |x=0,y=0 = 52 G).
Tests of Dynamical Flux Emergence as a Mechanism for CME Initiation
The “outside” plaquettes of the tube are shown in Fig. 3(b), and the configuration depends on whether the tube plaquettes are at a corner or not.
k-String tensions and the 1/N expansion
The tubes run through the periodic lattice in the z -direction, and the two gray areas in each tube are identified.
k-String tensions and the 1/N expansion
The above ‘tube’ surgery is only a special instance of the coupling of two N = 2 theories by replacing a pair of punctures by a thin tube.
Classification of complete N=2 supersymmetric theories in 4 dimensions
Let E be a regular simple module in a nonhomogeneous tube with rank n and E (λ) the regular simple module in the homogeneous tube for λ ∈ P1 of degree 1.
A quantum analogue of generic bases for affine cluster algebras
Subsequently, for a smooth, unit codimensional, convex set A ⊂ Rk , let us define the tube Tube(A, ρ), of width ρ around the set A as the set (A ⊕ B (0, ρ)), where B (0, ρ) is the k-dimensional ball of radius ρ centred at origin, and ⊕ is used to denote the Minkowski sum of sets.
Random fields and the geometry of Wiener space
Any such transformation maps Tube(d−1 A (r), ) to Tube(∂A, ) for r < ρ and any  < ν .
Random fields and the geometry of Wiener space
The scintillating fibre tracker is placed between the top three tubes and the bottom eight tubes, as shown in Fig. 3, in order to minimize the resolution of the extrapolated track from the drift tubes.
A 1 mm Scintillating Fibre Tracker Readout by a Multi-anode Photomultiplier
Under the assumption that all tubes behave the same, the R(t) relation for all the tubes in the data set is derived from this.
A 1 mm Scintillating Fibre Tracker Readout by a Multi-anode Photomultiplier
One of the consequences of the symmetry of the placement of the drift tubes is that with the resolution of each individual tube being worse near the wire and near the outer edges, where consecutive parts of the detector with poor resolution overlap, creating zones of poor efficiency and resolution, as seen in Fig. 11.
A 1 mm Scintillating Fibre Tracker Readout by a Multi-anode Photomultiplier
The details are explained in the text. (right) The standard deviation of δR as a function of position, x, in the tube plane excluding Tube-5.
A 1 mm Scintillating Fibre Tracker Readout by a Multi-anode Photomultiplier
The requirement of having four tube-layer hits reduces the left/right ambiguity of the drift radius, but also reduces the effective coverage of the drift tubes.
A 1 mm Scintillating Fibre Tracker Readout by a Multi-anode Photomultiplier
The Monte Carlo data was reconstructed with the same method applied to the experimental data, re-establishing an R(t) relation for the tubes and using the same analysis methods to determine the drift tube resolution.
A 1 mm Scintillating Fibre Tracker Readout by a Multi-anode Photomultiplier