noun Date: 1867 a branch of chemistry that deals with the effect of radiant energy in producing chemical changes, 2. photochemical properties , photochemical processes , photochemist noun
PHOTOCHEMISTRY
Meaning of PHOTOCHEMISTRY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012