Definition of MARE

:  an evil preternatural being causing nightmares

Origin of MARE

Middle English, from Old English; akin to Old High German mara incubus, Serbo-Croatian mora nightmare
First Known Use: before 12th century


noun \ˈmer\

Definition of MARE

:  a female horse or other equine animal especially when fully mature or of breeding age

Origin of MARE

Middle English, from Old English mere; akin to Old High German merha mare, Old English mearh horse, Welsh march
First Known Use: before 12th century

Other Mammals Terms

dormouse, dugong, gibbon, grimalkin, sable, stoat, ungulate, vole


noun \ˈmär-(ˌ)ā\
plural ma·ria \ˈmär-ē-ə\ also ma·res \ˈmär-(ˌ)āz\

Definition of MARE

:  any of several mostly flat dark areas of considerable extent on the surface of the moon or Mars

Origin of MARE

New Latin, from Latin, sea — more at marine
First Known Use: 1860

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith


noun    (Concise Encyclopedia)

Any flat, low, dark plain on the Moon. Maria are huge impact basins containing lava flows marked by ridges, depressions (graben), and faults; though mare means “sea” in Latin, they lack water. The best-known is probably Mare Tranquillitatis (“Sea of Tranquillity”), the site of the Apollo 11 manned Moon landing. Most of the approximately 20 major maria are on the side of the Moon that always faces Earth; they are its largest surface features and can be seen from Earth with the unaided eye. The dark features of the “man in the moon” are maria.


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