un actinic

ac·tin·ic

[ak-tin-ik]
adjective
pertaining to actinism.

Origin:
1835–45; actin- + -ic

ac·tin·i·cal·ly, adverb
non·ac·tin·ic, adjective
non·ac·tin·i·cal·ly, adverb
un·ac·tin·ic, adjective
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Collins
World English Dictionary
actinic (ækˈtɪnɪk) [Click for IPA pronunciation guide]
 
adj
(of radiation) producing a photochemical effect
 
[C19: from actino- + -ic]
 
ac'tinically
 
adv
 
'actinism
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Un actinic is always a great word to know.
So is gobo. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
American Heritage
Medical Dictionary

actinic ac·tin·ic (āk-tĭn'ĭk)
adj.
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.
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