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Photinia

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• Photism

  [foh-tiz-uh m] /ˈfoʊ tɪz əm/ noun, Psychology. 1. a form of synesthesia in which a visual sensation, as of color or form, is produced by the sense of touch, hearing, etc. photism pho·tism (fō’tĭz’əm) n. The production of a sensation of light or color by a stimulus to another sense organ, such as that of […]

• Photoactinic

  [foh-toh-ak-tin-ik] /ˌfoʊ toʊ ækˈtɪn ɪk/ adjective 1. emitting radiation having the chemical effects of light and ultraviolet rays, as on a photographic film. /ˌfəʊtəʊækˈtɪnɪk/ adjective 1. emitting actinic radiation

• Photo-

  1. a combining form meaning “light” (photobiology); also used to represent “photographic” or “photograph” in the formation of compound words: photocopy. combining form 1. of, relating to, or produced by light: photosynthesis 2. indicating a photographic process: photolithography word-forming element meaning “light” or “photographic” or “photoelectric,” from Greek photo-, comb. form of phos (genitive photos) […]

• Photoactivation

  [foh-toh-ak-tuh-vey-shuh n] /ˌfoʊ toʊˌæk təˈveɪ ʃən/ noun, Chemistry. 1. the activation or control of a chemical, chemical reaction, or organism by light, as the activation of chlorophyll by sunlight during photosynthesis.

• Photoactive

  [foh-toh-ak-tuh-vey-shuh n] /ˌfoʊ toʊˌæk təˈveɪ ʃən/ noun, Chemistry. 1. the activation or control of a chemical, chemical reaction, or organism by light, as the activation of chlorophyll by sunlight during photosynthesis. /ˌfəʊtəʊˈæktɪv/ adjective 1. (of a substance) capable of responding to light or other electromagnetic radiation

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