The story
- Ancient Greek · derived fromἀκτίς, ἀκτῖν-“ray”
- English todayactinic
From Ancient Greek ἀκτίς, ἀκτῖν- (aktís, aktîn-, “ray”) + -ic.
Words from the same roots
Ancient Greekἀκτίς, ἀκτῖν- all →
actinal
Etymology from Wiktionary, CC BY-SA 4.0.
actinic
Today it means: Related to radiation; used most often in reference to light, especially in the ultraviolet range. Full definition →
Ancient Greek ἀκτίς, ἀκτῖν-