Tube

(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.

(Zool.) 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 Illust. of Tubeworm.

(Elec. Railways) A tunnel for a tube railway; also (Colloq.), a tube railway; a subway.

Capillary tube
a tube of very fine bore. See Capillary.

Fire tube
(Steam Boilers) a tube which forms a flue.

Tube coral
(Zool.) Same as Tubipore.

Tube foot
(Zool.) one of the ambulacral suckers of an echinoderm.

Tube plate
(Steam Boilers) a flue plate. See under Flue.

Tube pouch
(Mil.) a pouch containing priming tubes.

Tube spinner
(Zool.) any one of various species of spiders that construct tubelike webs. They belong to Tegenaria, Agelena, and allied genera.

Water tube
(Steam Boilers) a tube containing water and surrounded by flame or hot gases.

v. t.

To furnish with a tube; as, to tube a well.

[imp. & p. p. Tubed ; p. pr. & vb. n. Tubing.]

Noun	1.	tube - conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases Synonyms: tubing
	2.	tube - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope Synonyms: electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, vacuum tube
	3.	tube - a hollow cylindrical shape Synonyms: pipe
	4.	tube - (anatomy) any hollow cylindrical body structure Synonyms: tube-shaped structure
	5.	tube - electric underground railway Synonyms: metro, subway, underground
Verb	1.	tube - provide with a tube or insert a tube into
	2.	tube - convey in a tube; "inside Paris, they used to tube mail"
	3.	tube - ride or float on an inflated tube; "We tubed down the river on a hot summer day"
	4.	tube - place or enclose in a tube

1.	(hardware)	tube - A CRT terminal. Never used in the mainstream sense of TV; real hackers don't watch TV, except for Loony Toons, Rocky & Bullwinkle, Trek Classic, the Simpsons, and the occasional cheesy old swashbuckler movie.
2.	(electronics)	tube - electron tube.
3.	(jargon)	tube - (IBM) To send a copy of something to someone else's terminal. "Tube me that note."

Amtrak, L, Photronic cell, adjutage, amplifier, anode, attenuator, audio-frequency tube, baggage train, ballast regulator, ballast tube, barrel, base, beam-switching tube, bole, branch, cable railroad, cable railway, cask, catheter, cathode, cathode-ray tube, channel, choo-choo, cog railroad, cog railway, color kinescope, column, convertor, current regulator, cylinder, cylindroid, damper, detector, direct-viewing tube, discharge tube, discriminator, dissector tube, doubler, drainpipe, drum, efflux tube, el, electric, electric railway, electric train, electrode, electron-image tube, elevated, elevated railway, embankment, express, express train, feeder, feeder line, filament, fire hose, flier, flue pipe, flume, focus tube, freight, freight train, freighter, funicular, funnel, garden hose, gas phototube, gas pipe, generator, goods train, gravity-operated railway, grid, horse railway, hosepipe, iconoscope, image dissector, image iconoscope, interurban, inverter, junction, kinescope, light railroad, lightning express, limited, limiter, line, local, local-oscillator tube, main line, metro, milk train, mixer tube, modulator, monorail, monoscope, multiplier, multiplier phototube, multipurpose tube, multivibrator, nipple, organ pipe, oscillator, output tube, parliamentary, parliamentary train, passenger train, phase inverter, photocathode, photoconductor cell, photomultiplier tube, phototube, photovoltaic cell, picture tube, pillar, pipeline, pipette, piping, plate, power tube, pulse generator, put through channels, rack railway, rack-and-pinion railroad, rack-and-pinion railway, radio tube, radio-frequency tube, rail, rail line, railroad, railroad train, railway, rattler, receiving tube, rectifier tube, reed, reed pipe, regulator, repeater, roadbed, roadway, roll, roller, rolling stock, rouleau, shuttle, shuttle train, siamese, siamese connection, sidetrack, siding, siphon, snorkel, soft phototube, soil pipe, special, standpipe, steam pipe, stem, straw, streamliner, street railway, streetcar line, subway, switchback, tap, terminal, terminus, track, train, tram, tramline, transducer, trestle, trigatron, trigger tube, trolley line, trunk, trunk line, tubing, tubulation, tubule, tubulet, tubulure, turnout, underground, vacuum phototube, vacuum tube, valve, waste pipe, water pipe, way train

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