Lexic.us

Definition of Melanosome

1. Noun. (biology) Any organelle that contains melanin. ¹

¹ Source: wiktionary.com

Definition of Melanosome

1. [n -S]

Medical Definition of Melanosome

1. Membrane bounded organelle found in melanocytes, when melanin synthesis is active internal structure is characteristic, containing melanofilaments that have a periodicity of around 9nm and are arranged in parallel arrays. Mature melanosomes, in which the filamentous structure is masked by the dense accumulation of melanin, are transferred to keratinocytes. Origin: Gr. Soma = body (13 Nov 1997)

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