mélanophore


mélanophore

mélanophore nom féminin Cellule capable de stocker la mélanine mais non de la fabriquer.

mélanophore [melanofɔʀ] n. m.
ÉTYM. 1913 in Rev. gén. des sc.; 1839, Boiste, nom d'un insecte; de mélano-, et -phore.
Didact. Sc. Cellule pigmentaire contenant de la mélanine. Mélanocyte.
0 Les mélanophores, chargés de granules de mélanine noire, occupent la partie profonde de la peau (chez les Amphibiens) et sont responsables selon leur état de distension des teintes brune ou noire (…)
Jean Guibé, les Batraciens, p. 24.

Encyclopédie Universelle. 2012.

Regardez d'autres dictionnaires:

  • melanophore — [məl′ə nō fôr΄, mə lan′əfôr΄] n. a chromatophore containing melanin, found esp. in coldblooded animals …   English World dictionary

  • melanophore — noun Date: 1903 a melanin containing cell especially of fishes, amphibians, and reptiles …   New Collegiate Dictionary

  • melanophore — a black chromatophore (capable of producing yellows and brown when pigment is thinly dispersed) …   Dictionary of ichthyology

  • melanophore — Cell type found in skin of lower vertebrates (amphibian skin, fish scales) that contains granules of the black pigment melanin. The granules can be rapidly redeployed between a dispersed state (which darkens the skin) and concentration at the… …   Dictionary of molecular biology

  • melanophore — /meuh lan euh fawr , fohr , mel euh neuh /, n. Biol. a pigmented connective tissue cell containing melanin in its cytoplasm, responsible for color changes in many fishes and reptiles. [1900 05; MELANO + PHORE] * * * …   Universalium

  • melanophore — noun A cell containing melanin or other black pigment, such as are found in fish, amphibians, and reptiles See Also: melanophoric …   Wiktionary

  • melanophore — A dermal pigment cell that does not secrete its pigment granules but participates in rapid color changes by intracellular aggregation and dispersal of melanosomes; it is well developed in fish, amphibians, and reptiles, but absent in humans.… …   Medical dictionary

  • Melanophore — Me|la|no|pho|re, die; , n <meist Pl.> [zu griech. phorós = tragend] (Biol.): Melanin enthaltende Zelle in der Haut von Kaltblütern …   Universal-Lexikon

  • Melanophore — Me|la|no|pho|re die; , n (meist Plur.) <zu ↑...phor> Melanin enthaltende Zelle in der Haut von Kaltblütern, die der Hautverfärbung dient (z. B. der Anpassung an die Umwelt; Biol.) …   Das große Fremdwörterbuch

  • melanophore — melano·phore …   English syllables


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