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Definition of Soporiferous
1. Adjective. Sleep inducing.
Exact synonyms: Hypnagogic, Hypnogogic, Somniferous, Somnific, Soporific
Similar to: Depressant
Derivative terms: Soporific
Similar to: Depressant
Derivative terms: Soporific
2. Adjective. Inducing mental lethargy. "A narcotic speech"
Definition of Soporiferous
1. a. Causing sleep; somniferous; soporific.
Definition of Soporiferous
1. [adj]
Medical Definition of Soporiferous
1. Causing sleep; somniferous; soporific. "Soporiferous medicine." - Soporiferously, Soporiferousness. Origin: L. Soparifer; sopor a heavy sleep + ferere to bring. Source: Websters Dictionary (01 Mar 1998)