melanoma n 1: any of several malignant neoplasms (usually of the skin) consisting of melanocytes [syn: {melanoma}, {malignant melanoma}]
malignant melanoma \malignant melanoma\ n. (Med.), Any of several malignant neoplasms (usually of the skin) consisting of melanocytes; called also {melanoma}. It is classed as a type of skin cancer. [WordNet 1.5]
Melanoma \Mel`a*no"ma\, n.; L. pl. {-nomata}. [NL.; Gr. ?, ?, black + -oma.] (Med.) (a) A tumor containing dark pigment. Such tumors are usually malignant and often fatal. (b) Development of dark-pigmented tumors. [Webster 1913 Suppl. +PJC]