What does "audion" mean?

An early electronic amplifying tube consisting of a partially evacuated glass tube with three electrodes, a heated filament, a grid, and a plate.

Audion

Common synonyms include: amplifier tube, brand name, detector tube, marketing term, trademark, triode.

noun

noun ·Rare ·Advanced level

Noun

1
An early electronic amplifying tube consisting of a partially evacuated glass tube with three electrodes, a heated filament, a grid, and a plate.

Neologism based on Latin audio (“to hear”).