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onanism Line breaks: onan|ism
Pronunciation: /ˈəʊnənɪz(ə)m/

Definition of onanism in English:

noun

[mass noun] formal

Origin

Early 18th century: from French onanisme or modern Latin onanismus, from the name Onan (Gen. 38:9), who practised coitus interruptus.

Derivatives

onanist

1
Pronunciation: /ˈəʊnənɪst/
noun

onanistic

2
Pronunciation: /ˈəʊnənɪst/
Pronunciation: /əʊnəˈnɪstɪk/
adjective

Definition of onanism in:

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Word of the day fortissimo
Pronunciation: fɔːˈtɪsɪməʊ
adverb
(especially as a direction) very loud or loudly