n.
Pronunciation: ' mär-( ˌ ) ā
Function: noun
Inflected Form: plural ma · ria \ ' mär- ē - ə \ also ma · res \ ' mär-( ˌ ) ā z \
Etymology: New Latin, from Latin, sea ― more at MARINE
Date: 1860
: any of several mostly flat dark areas of considerable extent on the surface of the moon or Mars