photochemical
Concise Oxford English Dictionary © 2008 Oxford University Press:
photochemical/fəʊtəʊˈkemɪkl/
▶adjective relating to or caused by the chemical action of light.
■ relating to photochemistry.
– derivatives
photochemically adverb.
photochemically adverb.
'photochemical' also found in these Oxford entries:

