onanism

[ oh-nuh-niz-uhm ]
/ ˈoʊ nəˌnɪz əm /

noun

withdrawal of the penis in sexual intercourse so that ejaculation takes place outside the vagina; coitus interruptus.

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seclusion

Origin of onanism

First recorded in 1720–30; after Onan, son of Judah (Genesis 38:9); see -ism

OTHER WORDS FROM onanism

o·nan·ist, nouno·nan·is·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for onanism

onanism
/ (ˈəʊnəˌnɪzəm) /

noun

Derived forms of onanism

onanist, noun, adjectiveonanistic, adjective

Word Origin for onanism

C18: after Onan, son of Judah; see Genesis 38:9
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

Medical definitions for onanism

onanism
[ ōnə-nĭz′əm ]

n.

coitus interruptus
Masturbation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.