photic

/foh-tik/US // ˈfoʊ tɪk //UK // (ˈfəʊtɪk) //

光线,光电,光子,光照度

Definitions

adj.形容词 adjective

1
- : of or relating to light.
- : pertaining to the generation of light by organisms, or their excitation by means of light.

In these cases the photic stimulus produces partly chemical and partly mechanical changes.
The latent period of photic reaction is shortened with the increasing intensity of light.
I reproduce below two records of the effects of continuous photic and electric stimulation.
The tropic curve under geotropic stimulus is similar to that under photic stimulus.
I shall describe a device which gives a continuous record of photic variation for the whole day.