[ awr-thi-kon ]
/ ˈɔr θɪˌkɒn /

noun Television.

a camera tube, more sensitive than the iconoscope, in which a beam of low-velocity electrons scans a photoemissive mosaic.
Also or·thi·con·o·scope [awr-thi-kon-uh-skohp] /ˌɔr θɪˈkɒn əˌskoʊp/.

Origin of orthicon

First recorded in 1935–40; orth- + icon(oscope)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for orthicon


/ (ˈɔːθɪˌkɒn) /


a television camera tube in which an optical image produces a corresponding electrical charge pattern on a mosaic surface that is scanned from behind by an electron beam. The resulting discharge of the mosaic provides the output signal currentSee also image orthicon

Word Origin for orthicon

C20: from ortho- + icon (oscope)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012