Synonyms for tube

noun

1. A hollow cylinder

   conduit, hose, test tube, tubing, tunnel, loom, subway; see also pipe 1.

2. A pliable container

   package, paste tube, squeeze tube; see container.

3. An electronic device

   cell, vacuum tube, electron tube, electronic tube; see device 1, machine 1.

   Electronic tubes include: electric eye, electron tube, vacuum tube, neon tube, neon light, fluorescent tube, fluorescent light, radio tube, television tube, cathode ray tube, X-ray tube, photoelectric tube, photoelectric cell, thermionic tube, thermionic valve, converter, gas tube, vapor tube, focus tube, high pressure tube, low pressure tube.

4. Specialized tubes include: Geissler tube, Crookes tube, Venturi tube, Geiger-Müller tube, Braun tube, traveling wave tube, negative grid electron tube, photomultiplier tube, X-ray diffraction tube, grid-seal tube, disk-seal tube, grid-glow tube, glow-discharge tube, multigrid tube, multiplex tube, mercury-vapor tube, triode, tetrode, thyratron, phasitron, diode, pentagrid, klystron, ignatron, magnetron, exitron.