masturbation

masturbation

[mas-ter-bey-shuhn]
noun
1.
the stimulation or manipulation of one's own genitals, especially to orgasm; sexual self-gratification.
2.
the stimulation, by manual or other means exclusive of coitus, of another's genitals, especially to orgasm.

Origin:
1760–70; masturbate + -ion

masturbational, adjective
masturbatory [mas-ter-buh-tawr-ee, -tohr-ee] , adjective
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World English Dictionary
masturbate (ˈmæstəˌbeɪt)
 
vb
to stimulate the genital organs of (oneself or another) to achieve sexual pleasure
 
[C19: from Latin masturbārī, of unknown origin; formerly thought to be derived from manus hand + stuprāre to defile]
 
mastur'bation
 
n
 
'masturbator
 
n

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Etymonline
Word Origin & History

masturbation
1766, from Mod.L. masturbationem, from L. masturbatus, pp. of masturbari. The long-standing speculation is that this is altered (probably by influence of turbare "to stir up") from *manstuprare, from manu, abl. of manus "hand" (see manual) + stuprare "defile" (oneself),
from stuprum "defilement, dishonor," related to stupere "to be stunned, stupefied" (see stupid). But perhaps the first element represents an unattested *mazdo- "penis." An earlier technical word for this was Onanism (q.v.).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

masturbation mas·tur·ba·tion (mās'tər-bā'shən)
n.
Excitation of one's own or another's genital organs, usually to orgasm, by manual contact or means other than sexual intercourse.

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