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The study of the effects of light on living organisms and biological processes.

pho′to·bi′o·log′ic (-bī′ə-lŏj′ĭk), pho′to·bi′o·log′i·cal (-ĭ-kəl) adj.


(Biology) the branch of biology concerned with the effect of light on living organisms
photobiological, photobiologic adj
ˌphotobiˈologist n


(ˌfoʊ toʊ baɪˈɒl ə dʒi)

the study of the effects of light on biological systems.
pho`to•bi`o•log′i•cal (-ˌbaɪ əˈlɒdʒ ɪ kəl) pho`to•bi`o•log′ic, adj.
pho`to•bi•ol′o•gist, n.
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References in periodicals archive ?
George Brainard, a photobiologist at the Thomas Jefferson University in Pennsylvania, who was not involved in the project, told (http://www.
In fact, if people really did follow the conventional public health advice, we would be much more vitamin D insufficient than we now are," according to the photobiologist.
According to Richard Felten, senior reviewer and photobiologist with the General Surgical Devices Branch of the FDA, there are no FDA-approved cellulite treatment devices.