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[foh-tuh-thur-mik] /ˌfoʊ təˈθɜr mɪk/

pertaining to the thermal effects of light.
pertaining to or involving both light and heat.
of or concerned with light and heat, esp the production of heat by light


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  • Phototopography

    [foh-toh-tuh-pog-ruh-fee] /ˌfoʊ toʊ təˈpɒg rə fi/ noun 1. topographical surveying employing photogrammetric methods. /ˌfəʊtəʊtəˈpɒɡrəfɪ/ noun 1. the preparation of topographic maps from photographs

  • Phototoxic

    /ˌfəʊtəʊˈtɒksɪk/ adjective 1. (of cosmetics, skin creams, etc) making the skin hazardously sensitive to sunlight phototoxic pho·to·tox·ic (fō’tō-tŏk’sĭk) adj. Rendering the skin susceptible to damage by light. Used of certain medications. pho’to·tox·ic’i·ty (-tŏk-sĭs’ĭ-tē) n.

  • Phototoxin

    [foh-tuh-tok-sin] /ˈfoʊ təˌtɒk sɪn/ noun 1. Biochemistry. a plant causing an allergic reaction when touched or eaten by a susceptible person or animal subsequently exposed to sunlight.

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