Dictionary

thermionics

noun plural but singular in construction therm·ion·ics \ˌthər-(ˌ)mī-ˈä-niks\

Definition of THERMIONICS

:  physics dealing with thermionic phenomena

First Known Use of THERMIONICS

1909

Browse

Next Word in the Dictionary: thermionic tubePrevious Word in the Dictionary: thermionic currentAll Words Near: thermionics
April 18, 2015
wimple Hear it
to veil, ripple, or meander
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears