See more synonyms for castrate on
verb (used with object), cas·trat·ed, cas·trat·ing.
  1. to remove the testes of; emasculate; geld.
  2. to remove the ovaries of.
  3. Psychology. to render impotent, literally or metaphorically, by psychological means, especially by threatening a person's masculinity or femininity.
  4. to deprive of strength, power, or efficiency; weaken: Without those ten new submarines, our navy will be castrated.
  1. a castrated person or animal.

Origin of castrate

1605–15; < Latin castrātus past participle of castrāre to geld, equivalent to castr- geld + -ātus -ate1
Related formscas·tra·tion, nouncas·tra·tor, nounun·cas·trat·ed, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for castrate


verb (tr)
  1. to remove the testicles of; emasculate; geld
  2. to deprive of vigour, masculinity, etc
  3. to remove the ovaries of; spay
  4. to expurgate or censor (a book, play, etc)
Derived Formscastration, nouncastrator, noun

Word Origin for castrate

C17: from Latin castrāre to emasculate, geld
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for castrate

1610s (implied in castrated), back-formation from castration (q.v.), or from Latin castratus, past participle of castrare. The figurative sense is attested earlier (1550s). Related: Castrating.

Online Etymology Dictionary, © 2010 Douglas Harper

castrate in Medicine


  1. To remove the testicles of a male; emasculate.
  2. To remove the ovaries of a female; spay.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.