noun (n)

• female equine animal(noun.animal)

  Synonym:
  female horse
  

  source: wordnet30
• a dark region of considerable extent on the surface of the moon(noun.object)

  Synonym:
  maria
  

  source: wordnet30
• The female of the horse and other equine quadrupeds.(noun)

  source: webster1913
• Sighing, suffocative panting, intercepted utterance, with a sense of pressure across the chest, occurring during sleep; the incubus; -- obsolete, except in the compound nightmare.(noun)

  source: webster1913