[foh-toh-bahy-ol-uh-jee] /ˌfoʊ toʊ baɪˈɒl ə dʒi/

the study of the effects of light on biological systems.
the branch of biology concerned with the effect of light on living organisms

photobiology pho·to·bi·ol·o·gy (fō’tō-bī-ŏl’ə-jē)
The study of the effects of light on living organisms and biological processes.
pho’to·bi’o·log’ic (-bī’ə-lŏj’ĭk) or pho’to·bi’o·log’i·cal (-ĭ-kəl) adj.


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  • Photobomb

    [foh-toh-bom] /ˈfoʊ toʊˌbɒm/ Informal. verb (used with object) 1. to ruin (a photograph) by appearing in the image without the photographer’s knowledge, often in some dramatic or comical way: My brother photobombed what would have been a nice photo of my grandma and me. 2. to do this to (the subject of a photograph or […]

  • Photo call

    noun 1. a time arranged for photographers, esp press photographers, to take pictures of a celebrity, the cast of a play, etc, usually for publicity purposes

  • Photocard

    /ˈfəʊtəʊˌkɑːd/ noun 1. an identity card containing a photograph of the bearer noun an identification card with one’s personal photo on it Usage Note British
