WordReference Random House Unabridged Dictionary of American English © 2024pho•tic (fō′tik),USA pronunciation adj. - Opticsof or pertaining to light.
- pertaining to the generation of light by organisms, or their excitation by means of light.
- Greek phōt- (see phot) + -ic
- 1835–45
Collins Concise English Dictionary © HarperCollins Publishers::
photic /ˈfəʊtɪk/ adj - of or concerned with light
Also: photobathic designating the zone of the sea where photosynthesis takes place
Etymology: 19th Century: from photo- + -ic