from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A hollow cylinder, especially one that conveys a fluid or functions as a passage.
- noun An organic structure having the shape or function of a tube; a duct.
- noun A small flexible cylindrical container sealed at one end and having a screw cap at the other, for pigments, toothpaste, or other pastelike substances.
- noun Music The cylindrical part of a wind instrument.
- noun An electron tube.
- noun A vacuum tube.
- noun Botany The lower, cylindrical part of a gamopetalous corolla or a gamosepalous calyx.
- noun A tunnel.
- noun An underground railroad system, especially the one in London, England.
- noun The elongated space inside a wave when it is breaking.
- noun An inner tube.
- noun An inflatable tube or cushion made of rubber or plastic and used for recreational riding, as behind a motor boat or down a snow-covered slope.
- noun Television.
- noun A television set.
- noun Informal The fallopian tubes.
- intransitive verb To provide with a tube; insert a tube in.
- intransitive verb To place in or enclose in a tube.
- intransitive verb To ride or float on an inflated tube for recreation.
- idiom (tubes/tube) Into a state of failure or ruin.
from The Century Dictionary.
- noun A city subway in the form of a tunnel.
- A pipe or hollow cylinder, especially when of small size and used as a conduit for liquids, or for containing liquids, as in some forms of scientific apparatus.
- Specifically, the main body of a musical instrument of either the wood wind or the brass wind group. The bore of such instruments is usually conical, but sometimes cylindrical.
- In anatomy and zoology, a hollow tubular organ; a pipe, canal, or duct conveying fluid or gas; especially, a pipe which seems to be empty—that is, conveys air: as, the bronchial tubes; the Eustachian tube.
- In botany, any hollow elongated body or part of an organ: applied especially to a gamopet-alous corolla or gamosepalous calyx, also to a united circle of stamens (see cut 9 under stamen).
- A priming-tube.
- A telescope, or that part of it into which the lenses are fitted.
- The barrel of a chain-pump.
- A small receptacle of drawn lead, of approximately tubular form, closed at the bottom by bending it over twice or three times on itself, and having a screw-cap at the top, used to hold pigments or similar matter in a semifluid condition.
- To furnish with a tube or tubes.
- To receive or inclose in a tube.
from the GNU version of the Collaborative International Dictionary of English.
- transitive verb To furnish with a tube.
- noun A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe.
- noun A telescope.
- noun A vessel in animal bodies or plants, which conveys a fluid or other substance.
- noun (Bot.) The narrow, hollow part of a gamopetalous corolla.
- noun (Gun.) A priming tube, or friction primer. See under
Priming, and Friction.
- noun (Steam Boilers) A small pipe forming part of the boiler, containing water and surrounded by flame or hot gases, or else surrounded by water and forming a flue for the gases to pass through.
- noun A more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See
- noun One of the siphons of a bivalve mollusk.
- noun (Elec. Railways), Chiefly Eng. A tunnel for a tube railway; also (Colloq.), a tube railway; a subway.
- noun a tube of very fine bore. See
- noun (Steam Boilers) a tube which forms a flue.
- noun (Zoöl.) Same as
- noun (Zoöl.) one of the ambulacral suckers of an echinoderm.
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
When an ovum is matured, it escapes from the ovary into the narrow tube referred to, called the _Fallopian tube_, and passes down into the cavity of the uterus.
It is passed down a tube that we call the _food tube_.
The _middle ear_, it will be seen, is a drum with its stretched membrane like any other drum, and it too has a communication with the exterior air through a tube, the _Eustachian tube_, which leads from the drum into the back part of the throat.
The doctors were also asked whether other issues had led them to recommend the heart test — called a cardiac catheterization — during which a thin tube is threaded to the heart to check how well it is working and to look for disease.
The tube is a catheter (a thin tube) placed into the cecum, the first part of the large bowel (in the lower right abdomen).
This test usually confirms the diagnosis. cardiac catheterization – a thin tube is inserted into the heart through a vein and/or artery in either the leg or through the umbilicus (“belly button”)
Diagnosis may also include: chest X-ray electrocardiogram (ECG) – a record of the electrical activity of the heart cardiac catheterization – a thin tube is inserted into the heart through a vein and/or artery in either the leg, the neck, or through the umbilicus (“belly button” - used in newborns only). cardiac MRI
Cardiac magnetic resonance imaging (MRI) – detailed images of the heart produced by magnets cardiac catheterization – a thin tube is inserted into the heart through a large vein and/or artery in either the side of the neck, or groin
More rarely, cardiaccatheterization will be required: a thin tube is inserted into the heart through a vein and/or artery in either the leg or through the umbilicus (“belly button”).
Dar – For a tin tube is inserted for the passage of urine.