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Adjective: somniferous  sóm'ni-fu-rus
  1. Sleep inducing
    "This is the first description of the famous somniferous sponge that was used very extensively by the members of the School of Salerno"
    - soporific, soporiferous, somnific, hypnogogic, hypnagogic

See also: depressant

Nearest

somewhere
somite
Somme
Somme River
sommelier
sommer
somnambulate
somnambulation
somnambulism
somnambulist
somniferous
somnific
somniloquism
somniloquist
somniloquy
somnolence
somnolent
somnolently
Somrai
Son
son