1 [mair]
a fully mature female horse or other equine animal.

before 900; Middle English, variant of mere, Old English m(i)ere; cognate with Dutch merrie, German Mähre, Old Norse merr; akin to Old English mearh, Old Norse marr, Irish marc horse. See marshal Unabridged


2 [mair]
noun Obsolete.
nightmare ( def 3 ).

before 900; Middle English, Old English; cognate with German Mahre, Old Norse mara. See nightmare


3 [mahr-ey, mair-ee]
noun, plural maria [mahr-ee-uh, mair-] . Astronomy.
any of the several large, dark plains on the moon and Mars: Galileo believed that the lunar features were seas when he first saw them through a telescope.

1680–90; < Latin: sea Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To mares
World English Dictionary
mare1 (mɛə)
the adult female of a horse or zebra
[C12: from Old English, of Germanic origin; related to Old High German mariha, Old Norse merr mare]

mare2 (ˈmɑːreɪ, -rɪ)
n , pl maria
1.  (capital when part of a name) any of a large number of huge dry plains on the surface of the moon, visible as dark markings and once thought to be seas: Mare Imbrium (Sea of Showers)
2.  a similar area on the surface of Mars, such as Mare Sirenum
[from Latin: sea]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

"female horse," O.E. mere (Mercian), myre (W.Saxon), fem. of O.E. mearh "horse," from P.Gmc. *markhjon (cf. O.S. meriha, O.N. merr, O.Fris. merrie, Ger. Mähre "mare"), said to be of Gaulish origin (cf. Ir. and Gael. marc, Welsh march, Bret. marh "horse"). No known cognates beyond Gmc. and Celtic.
As the name of a throw in wrestling, it is attested from c.1600. Mare's nest "illusory discovery, excitement over something which does not exist" is from 1610s.

"broad, dark areas of the moon," 1765, from L. mare "sea" (see marine), applied to lunar features by Galileo and used in 17c. Latin works. They originally were thought to be actual seas.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Science Dictionary
mare   (mä'rā)  Pronunciation Key 
Plural maria (mä'rē-ə)
Any of the large, low-lying dark areas on the Moon or on Mars or other inner planets. The lunar maria are believed to consist of volcanic basalts, and many are believed to be basins formed initially by large impacts with meteoroids and later filled with lava flows. Compare terra.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
The counsellors know everything that is needed to be known about the mares.
It increased the number of horses that would be returned to the lands and
  decided not to spay the mares.
He even escorted me out of the canyon to protect his mares and babies.
Each year they inject the vaccine into some of the mares.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature