- pertaining to actinism.
Origin of actinic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for actinic
But the figure passed beyond the actinic glare and vanished.
They were terrific words too, from aortic and actinic 232 in the a's to genuflections in the g's.The Annals of Ann
Kate Trimble Sharber
For this reason, it is obvious that it must not be carelessly exposed to actinic light.
In what season of the year is the actinic power of light the greatest?
Because of the actinic, or chemical power of the rays of the sun.
- (of radiation) producing a photochemical effect
C19: from actino- + -ic
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
- Of or relating to the chemically active rays of the electromagnetic spectrum.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.