soporiferous

Variant of soporific

soporific definition

sopo·rific (säp′ə rif′ik, sō′pə-)

adjective

  1. causing or tending to cause sleep
    also soporiferous sop′o·rif′·er·ous (-rif′ər əs)
  2. of or characterized by sleep or sleepiness

Etymology: Fr soporifique: see sopor & -fic

noun

something, as a drug, that causes sleep

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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