thermionic tube, n.
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
<noun.artifact> freq. cnt.: 7 freq. cnt.: 7
electron tube thermionic tube thermionic vacuum tube thermionic valve tube vacuum tube
semantic pointers
hyponym
acorn tube
diode, rectifying tube, rectifying valve
electron multiplier
gas-discharge tube
klystron
magnetron
pentode
television-camera tube, television pickup tube
tetrode
triode
X-ray tube
part meronym
part holonym
hypernym