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photobiology

pho·to·bi·ol·o·gy

noun \ˌfōt-ō-(ˌ)bī-ˈäl-ə-jē\

plural pho·to·bi·ol·o·gies

: a branch of biology that deals with the effects of radiant energy (as light) on living things

—pho·to·bi·o·log·i·cal \-ˌbī-ə-ˈläj-i-kəl\ also pho·to·bi·o·log·ic \-ik\ adjective

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