mare mare /ˈmɛr/

noun

1. () Female equine animal  ( female horse , mare )
   female equine animal
     The mare nuzzled her newborn foal, displaying a tender maternal bond.
   The mare nuzzled her newborn foal, displaying a tender maternal bond.
   
   
2. A dark region of considerable extent on the surface of the moon  ( mare , maria )
   a dark region of considerable extent on the surface of the moon
     Lunar explorers marveled at the vast dark maria, contrasting with the bright lunar highlands.
   Lunar explorers marveled at the vast dark maria, contrasting with the bright lunar highlands.