A specialized cell type in a multicellular organism that is sensitive to light. This definition excludes single-celled organisms, but includes non-eye receptors, such as snake infra-red (heat) detectors or photosensitive pineal gland cells. See retinal rods, retinal cones.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Photoreceptor — can refer to:In anatomy/cell biology: *Photoreceptor cell: a photosensitive cell, most commonly referring to a specialized type of neuron found in the retina of vertebrate eyes that is capable of phototransduction *Ocellus (invertebrate… …   Wikipedia

  • photoreceptor — [fōt΄ō ri sep′tər] n. Biol. a sense organ specialized to detect light, as the eye or any of the elements of a compound eye photoreception n. photoreceptive adj …   English World dictionary

  • photoreceptor — fotojutiklis statusas T sritis automatika atitikmenys: angl. photoreceptor; photosensor vok. Photosensor, m; Photowandler, m rus. фотодатчик, m pranc. photorécepteur, m; photosenseur, m …   Automatikos terminų žodynas

  • photoreceptor — noun Date: 1906 a receptor for light stimuli …   New Collegiate Dictionary

  • photoreceptor — n. [Gr. phos, light; L. receptor, receiver] A sense organ responsive to light …   Dictionary of invertebrate zoology

  • photoreceptor — /foh toh ri sep teuhr/, n. Physiol., Biol. a receptor stimulated by light. [1905 10; PHOTO + RECEPTOR] * * * …   Universalium

  • photoreceptor — noun A specialized neuron able to detect, and react to light …   Wiktionary

  • photoreceptor — A receptor that is sensitive to light, e.g., a retinal rod or cone. SYN: photoceptor. [photo + L. re cipio, pp. ceptus, to receive, fr. capio, to take] * * * pho·to·re·cep·tor sep tər n a receptor for light stimuli * * * pho·to·re·cep·tor… …   Medical dictionary

  • photoreceptor — n. receptor which perceives light stimulus (Biology) …   English contemporary dictionary

  • photoreceptor — noun a structure in an organism that responds to light. Derivatives photoreceptive adjective …   English new terms dictionary

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