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]

Source: The Collaborative International Dictionary of English v.0.48
 

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]

Source: The Collaborative International Dictionary of English v.0.48
 

melanoma

Source: WordNet (r) 2.0
 

Melanoma \Mel`a*no"ma\, n.; L. pl. -nomata. [NL.; Gr. ?, ?, black + -oma.]

(Med.)
   (a) A tumor containing dark pigment.
   (b) Development of dark-pigmented tumors.

Source: Webster's Revised Unabridged Dictionary (1913)