any of several malignant neoplasms (usually of the skin) consisting of melanocytes
同义词：malignant melanoma
melanoma详细解释
mel.a.no.ma n.（名词）【复数】mel.a.no.mas 或 mel.a.no.ma.ta [-m…-t…] 【病理学】 A dark-pigmented, usually malignant tumor arising from a melanocyte and occurring most commonly in the skin.黑瘤，黑素瘤：含有黑色素的，通常为恶性的肿瘤，由黑素细胞引起且最常见于皮肤中
