(inorganic chemistry) An analytical technique in which a sample is heated in a sealed tube, volatile metals being removed by sublimation to a cooler part of the tube from where they can be removed and weighed

Alternative form of travelling-wave tube

(electronics) A type of vacuum tube which amplifies electromagnetic signals, where the electron gun fires down the tube with an unmodulated electron beam, that passes through an interaction array, where the EM-signal is fed, which interacts with the electron beam, bunching the electrons, and transferring power to the signal.

Third-person singular simple present indicative form of go down the tube

simple past tense of go down the tube

Synonym of go down the tubes: to fail; to degenerate rapidly.

present participle of go down the tube

plural of giant tube worm

plural of sieve-tube element

A baby born using in vitro fertilisation