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[mas-ter-beyt] /ˈmæs tərˌbeɪt/
verb (used without object), masturbated, masturbating.
to engage in masturbation.
verb (used with object), masturbated, masturbating.
to practice masturbation upon.
Origin of masturbate
1855-60; < Latin masturbātus, past participle of masturbārī to engage in masturbation
Related forms
masturbator, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for masturbate


to stimulate the genital organs of (oneself or another) to achieve sexual pleasure
Derived Forms
masturbation, noun
masturbator, noun
Word Origin
C19: from Latin masturbārī, of unknown origin; formerly thought to be derived from manus hand + stuprāre to defile
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
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Word Origin and History for masturbate

1839, back-formation from masturbation, or else from Latin masturbatus, past participle of masturbari. Related: Masturbated; masturbating.

Online Etymology Dictionary, © 2010 Douglas Harper
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masturbate in Medicine

masturbate mas·tur·bate (mās'tər-bāt')
v. mas·tur·bat·ed, mas·tur·bat·ing, mas·tur·bates
To perform an act of masturbation.

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