Definition of melas:
(n) :
(medicine, uncommon) Synonym of melasma.
(n) :
(medicine, obsolete) Synonym of leprosy, particularly contagious forms causing dark spots on the skin.
(n) :
A surname.
(n) :
(pathology) Ellipsis of MELAS syndrome, a condition caused by malfunctioning mitochondria, that causes encephalomyopathy, lactic acidosis, and events similar to strokes.