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photoactinic

American  
[foh-toh-ak-tin-ik] / ˌfoʊ toʊ ækˈtɪn ɪk /

adjective

  1. emitting radiation having the chemical effects of light and ultraviolet rays, as on a photographic film.

photoactinic British  
/ ˌfəʊtəʊækˈtɪnɪk /

adjective

  1. emitting actinic radiation

"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

Etymology

Origin of photoactinic

photo- + actinic

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.