castrate, castrating 1. To deprive (gonadectomize) a male of his gonads, rendering him incapable of reproduction; thus, to geld or to emasculate; in the female, to remove the ovaries, or to spay. 2. Any individual who has been rendered incapable of reproduction by removal or destruction of the gonads (male) or ovaries (female). 3. To psychology re... Found on http://www.wordinfo.info/words/index/info/view_unit/387/