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[foh-toh-bahy-ot-ik, -bee-] /ˌfoʊ toʊ baɪˈɒt ɪk, -bi-/

adjective, Botany, Zoology.
living or thriving only in the presence of light.

photobiotic pho·to·bi·ot·ic (fō’tō-bī-ŏt’ĭk)
Depending on light for life and growth.


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  • Photocard

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  • Photocatalysis

    [foh-toh-kuh-tal-i-sis] /ˌfoʊ toʊ kəˈtæl ɪ sɪs/ noun, plural photocatalyses [foh-toh-kuh-tal-i-seez] /ˌfoʊ toʊ kəˈtæl ɪˌsiz/ (Show IPA). Chemistry. 1. the acceleration or retardation of the reaction rate in chemical reactions by light. /ˌfəʊtəʊkəˈtælɪsɪs/ noun (pl) -ses (-siːz) 1. the alteration of the rate of a chemical reaction by light or other electromagnetic radiation

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