Main Entry: pho·tol·y·sis

Pronunciation: \fō-ˈtäl-ə-səs\

Function: noun

Inflected Form(s): plural pho·tol·y·ses \-ˌsēz\

: chemical decomposition by the action of radiant energy—compare radiolysis

—pho·to·lyt·ic \ˌfōt-^əl-ˈit-ik\ adjective

—pho·to·lyt·i·cal·ly \-i-k(ə-)lē\ adverb