THERMION

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

An electrically charged particle (electron or ion) emitted by a substance at a high temperature

Classified under:

Nouns denoting natural objects (not man-made)

Hypernyms ("thermion" is a kind of...):

particle; subatomic particle (a body having finite mass and internal structure but negligible dimensions)

Derivation:

thermionic (of or relating to or characteristic of thermions)

Credits