adj.
Pronunciation: -( ˌ )d ī - ' na-mik
Function: adjective
Etymology: International Scientific Vocabulary
Date: 1909
: of, relating to, or having the property of intensifying or inducing a toxic reaction to light (as in the destruction of cancer cells stained with a light-sensitive dye) in a living system
– pho · to · dy · nam · i · cal · ly \ -mi-k( ə -)l ē \ adverb