Giving a brownish yellow reaction with chromic salts; denoting certain cells in the medulla of the adrenal glands and in paraganglia. SYN: chromaphil, chromatophil (3), chromophil (3), chromophile, pheochrome (1). [chrom- + L. affinis, affinity]

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chro·maf·fin 'krō-mə-fən adj staining deeply with chromium salts <\chromaffin cells of the adrenal medulla>

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tissue in the medulla of the adrenal glands consisting of modified neural cells containing granules that are stained brown by chromates. Adrenaline and noradrenaline are released from the granules when the adrenal gland is stimulated by its sympathetic nerve supply. See also neurohormone.

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chro·maf·fin (kro-mafґin) [chromium- + L. affinis having affinity for] taking up and staining strongly with chromium salts; see chromaffin cells, under cell. Called also pheochrome.

Medical dictionary. 2011.

Look at other dictionaries:

  • Chromaffin — Taking up and staining strongly with Chromium salts. Chromaffin may refer to: Chromaffin cells, neuroendocrine cells in the adrenal medulla. Chromophil cells, hormone producing cells showing chromaffin granules that readily absorb chromium stains …   Wikipedia

  • chromaffin — adjective Etymology: International Scientific Vocabulary chrom + Latin affinis bordering on, related more at affinity Date: 1903 staining deeply with chromium salts < chromaffin cells of the adrenal medulla > …   New Collegiate Dictionary

  • chromaffin — adj. [Gr. chroma, color; L. affinis, related to] Staining strongly with chromium salts; also called chromophil; chromophile …   Dictionary of invertebrate zoology

  • chromaffin — /kroh meuh fin/, adj. Histol. having an affinity for stains containing chromium salts, indicating the presence of epinephrine or norepinephrine. [ < G Chromaffine (1898), equiv. to chrom CHROM + L affinis next to, inclined to; see AFFINITY] * * * …   Universalium

  • chromaffin — adjective Having an affinity (and thus being stained brownish yellow) by chromium salts …   Wiktionary

  • chromaffin — chrom|af|fin 〈[kro:m ] Adj.; Biochem.〉 mit Chromsalzen anfärbbar ● chromaffine Zellen [<Chrom + affin] * * * chrom|af|fin <Adj.> (Biochemie): (von Zellen) mit Chromsalzen anfärbbar …   Universal-Lexikon

  • chromaffin — chrom|af|fin 〈[kro:m ] Adj.; Biochemie〉 mit Chromsalzen anfärbbar; chromaffine Zellen [Etym.: <Chrom + affin] …   Lexikalische Deutsches Wörterbuch

  • chromaffin — chrom|affi̱n [↑Chrom u. lat. affinis = angrenzend, verwandt]: mit Chromsalzen färbbar (von Zellen und Zellbestandteilen). chrom|affi̱nes Syste̱m: System von hormonliefernden, mit dem ↑Sympathikus zusammenwirkenden chromaffinen Zellen im Mark der… …   Das Wörterbuch medizinischer Fachausdrücke

  • chromaffin — chrom|af|fin <zu ↑chromo...> mit Chromsalzen anfärbbar (von Zellen u. Zellteilen; Biochem.); hromaffines System: eine Gruppe hormonliefernder Zellen, die sich bei Behandlung mit bestimmten chem. Substanzen braun färben …   Das große Fremdwörterbuch

  • chromaffin — chro·maf·fin …   English syllables

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