withdrawal method vs onanism

withdrawal method and onanism both are nouns.

Word	Noun	Adjective	Verb	Adverb
withdrawal method	Yes	No	No	No
onanism	Yes	No	No	No

As nouns, withdrawal method and onanism are synonyms defined as:

withdrawal method and onanism: a method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation

Other synonyms of withdrawal method include coitus interruptus, pulling out, withdrawal.

withdrawal method (noun)	onanism (noun)
a method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation	manual stimulation of the genital organs (of yourself or another) for sexual pleasure
	a method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation