masturbation masturbate • masturbational · · · Info · Definitions · Synonyms · Characters · · masturbation · · Text Latin · · Script 12 · · Length Definitions · · · (noun) manual stimulation of the genital organs (of yourself or another) for sexual pleasure. Synonyms: onanism. · · Noun Definition 1 Synonyms · · · onanism · · Synonym 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075