the morning star, especially Venus.
Also Phos·phore [fos-fawr, -fohr] /ˈfɒs fɔr, -foʊr/, Phosphorus.
Origin of Phosphor
1625–35; < Latin Phōsphorus < Greek Phōsphóros the morning star, literally, the light-bringing one, equivalent to phôs light + -phoros bringing; see -phorous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a substance, such as the coating on a cathode-ray tube, capable of emitting light when irradiated with particles or electromagnetic radiation
Word Origin for phosphor
C17: from French, ultimately from Greek phōsphoros phosphorus
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
"morning star," 1630s, from Latin phosphorus "the morning star" (see phosphorus). Meaning "anything phosphorescent" is from 1705.
Online Etymology Dictionary, © 2010 Douglas Harper
Any of various substances that can emit light after absorbing some form of radiation. Television screens and fluorescent lamp tubes are coated on the inside with phosphors. See Note at cathode-ray tube.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.