[ fuh-ley-shee-oh, -lah-tee-oh, fe- ]
/ fəˈleɪ ʃiˌoʊ, -ˈlɑ tiˌoʊ, fɛ- /


oral stimulation of the penis, especially to orgasm.
Also fel·la·tion [fuh-ley-shuh n, fe-] /fəˈleɪ ʃən, fɛ-/.

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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for fellatio's



/ (fɪˈleɪʃɪəʊ, fɛ-) /


a sexual activity in which the penis is stimulated by the partner's mouthCompare cunnilingus

Derived forms of fellatio

fellator, nounfellatrix, fem n

Word Origin for fellatio

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

Medical definitions for fellatio's

[ fə-lāshē-ō′ ]


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.