Definitions for orthiconˈɔr θɪˌkɒn; ˌɔr θɪˈkɒn əˌskoʊp
Random House Webster's College Dictionary
or•thi•conˈɔr θɪˌkɒn; ˌɔr θɪˈkɒn əˌskoʊp(n.)
a television camera tube in which a beam of low-velocity electrons scans a photoemissive mosaic.
Category: Radio and Television
Origin of orthicon:
orthicon, image orthicon(noun)
a now obsolete picture pickup tube in a television camera; electrons emitted from a photoemissive surface in proportion to the intensity of the incident light are focused onto the target causing secondary emission of electrons
TV camera tube.