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Pronunciation: so'po-rif'ik

Definition: Causing sleep.

Synonym(s): hypnotic2

Synonym(s): somnifacient, somniferous, somnific, soporiferous

[L. sopor, deep sleep, + facio, to make]

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.