IPA: //ˌfoʊtəˈbaɪələdʒi//
KK: /ˌfoʊtəˈbaɪələdʒi/
The branch of science that studies how light affects living things and their biological processes.
Photobiology helps us understand how plants use sunlight for photosynthesis.
Photobiology is formed from "photo-" (from Greek "phōs", meaning light) and "biology" (from Greek "bios", meaning life). The word refers to the study of the effects of light on living organisms.
Think of 'light' ('photo-') and 'life' ('bios') coming together to study how light affects living things.