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[fuh-ley-shee-oh, -lah-tee-oh, fe-] /fəˈleɪ ʃiˌoʊ, -ˈlɑ tiˌoʊ, fɛ-/
oral stimulation of the penis, especially to orgasm.
Also, fellation
[fuh-ley-shuh n, fe-] /fəˈleɪ ʃən, fɛ-/ (Show IPA)
Origin of fellatio
1885-90; < New Latin fellātiō, equivalent to Latin fel(l)āt(us) (past participle of fel(l)āre to suck) + -iō -ion Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for fellatio


/fɪˈleɪʃɪəʊ; fɛ-/
a sexual activity in which the penis is stimulated by the partner's mouth Compare cunnilingus
Derived Forms
fellator, noun
fellatrix, noun:feminine
Word Origin
C19: New Latin, from Latin fellāre to suck
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 fellatio

1887, from Latin fellatus, past participle of fellare "to suck," from PIE root *dhe(i)- (see fecund). The sexual partner performing fellatio is a fellator; if female, a fellatrice or fellatrix.

Online Etymology Dictionary, © 2010 Douglas Harper
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fellatio in Medicine

fellatio fel·la·ti·o (fə-lā'shē-ō', fě-)
Oral stimulation of the penis.

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