from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To remove surgically the ovaries of (an animal).

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Rare spelling of spayard.
  • v. To remove or destroy the ovaries (of an animal) in order that it cannot become pregnant.

from the GNU version of the Collaborative International Dictionary of English

  • n. The male of the red deer in his third year; a spade.
  • transitive v. To remove or extirpate the ovaries of, as a sow or a bitch; to castrate (a female animal).

from The Century Dictionary and Cyclopedia

  • To castrate (a female) by extirpating the ovaries.
  • See spae.
  • n. The male red-deer or hart in his third year.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. remove the ovaries of


Middle English spaien, from Anglo-Norman espeier, to cut with a sword, from espee, sword, from Latin spatha; see spathe.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From the Middle English verb spayen. (Wiktionary)
See spayard. (Wiktionary)


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