tube

1. (verb) convey in a tube
Related Words: bring, convey, take

2. (noun) a long hollow object (usually cylindrical) used to hold and conduct liquids or gases
Synonyms: tubing
Related Words: barrel, blow tube, blowgun, blowpipe, blowtube, burette, cannula, capillary, capillary tube, capillary tubing, catheter, channel, chromatography column, cigarette holder, coil, column, conduit, dropper, eye dropper, gun barrel, hose, hosepipe, inner tube, mouthpiece, pea shooter, pipage, pipe, pipette, piping, siphon, speaking tube, stem, syphon, test tube, tobacco pipe, torpedo tube, venturi, well point, wellpoint

3. (noun) a system of electrodes arranged in an evacuated glass or metal envelope
Synonyms: electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, vacuum tube
Related Words: CRT, X-ray tube, acorn tube, cathode-ray tube, diode, electron multiplier, electronic device, klystron, magnetron, pentode, rectifying tube, rectifying valve, television pickup tube, television-camera tube, tetrode, triode

4. (noun) (anatomy) any hollow cylindrical body structure
Synonyms: tube-shaped structure
Related Words: anatomical structure, bodily structure, body structure, cartilaginous tube, cochlea, complex body part, salpinx, structure, tubule, vas, vessel

5. (noun) a hollow cylindrical shape
Synonyms: pipe
Related Words: cylinder

6. (noun) an electric underground railway
Synonyms: metro, subway, underground
Related Words: railroad, railroad line, railway, railway line, railway system



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