Definition of onanism in English:

onanism

Syllabification: o·nan·ism
Pronunciation: /ˈōnəˌnizəm
 
/

noun

formal
1Masturbation.
2Coitus interruptus.

Origin

early 18th century: from French onanisme or modern Latin onanismus, from the biblical story of Onan (Gen. 38:8).

Derivatives

onanist

noun

onanistic

Pronunciation: /ˌōnəˈnistik/
adjective

Definition of onanism in:

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Word of the day apposite
Pronunciation: ˈapəzit
adjective
apt in the circumstances or relation to something