o, b, e, n, c, h, m, r, t, i, u are letters that make 'thermionic tube'
ER, herm, tube, he, mi, ONI, IC, MI, He, therm, be, ionic, thermion, on, ic, Ionic, thermionic, tub, Io, ion, Be, Er, Ni, Th are words within 'thermionic tube'
1 possible definitions for 'thermionic tube'
Under this definition, thermionic tube is a noun and has the following properties:
vacuum tube, thermionic vacuum tube, electron tube, tube, thermionic valve have the same meaning as 'thermionic tube'
'thermionic tube' can be a type of electronic device.
acorn tube, diode, rectifying tube, rectifying valve, electron multiplier, klystron, pentode, television-camera tube, television pickup tube, tetrode, triode, X-ray tube, gas-discharge tube, magnetron are types of 'thermionic tube'.
'thermionic tube' can be a part of circuit, electrical circuit, electric circuit.
anode, cathode, electrode, grid, control grid, plate are parts of 'thermionic tube'.