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coitus interruptus

[in-tuh-ruhp-tuh s]
noun, plural coitus in·ter·rup·ti [in-tuh-ruhp-tahy] /ˌɪn təˈrʌp taɪ/.
  1. coitus that is intentionally interrupted by withdrawal before ejaculation of semen into the vagina.
  2. an act or instance of this.

Origin of coitus interruptus

1895–1900; < New Latin: interrupted coitus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for coitus interruptus

coitus interruptus

noun
  1. the deliberate withdrawal of the penis from the vagina before ejaculation
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 coitus interruptus
n.

1900, first attested in Havelock Ellis.

Online Etymology Dictionary, © 2010 Douglas Harper
coitus interruptus in Medicine

coitus interruptus

[ĭn′tə-rŭp′təs]
n.
  1. Sexual intercourse deliberately interrupted by withdrawal of the penis from the vagina prior to ejaculation.onanism
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.