soporific Meaning, Definition & Usage

  1. noun a drug that induces sleep
    hypnotic.
  2. adjective satellite sleep inducing
    hypnagogic; hypnogogic; soporiferous; somniferous; somnific.
  3. adjective satellite inducing mental lethargy
    soporiferous; narcotic.
    • a narcotic speech

WordNet


Sop`o*rif"ic adjective
Etymology
L. sopor a heavy sleep (akin to somnus sleep) + facere to make. See Somnolent, Fact.
Definitions
  1. Causing sleep; tending to cause sleep; soporiferous; as, the soporific virtues of opium. Syn. -- Somniferous; narcotic; opiate; anodyne.
Sop`o*rif"ic noun
Definitions
  1. A medicine, drug, plant, or other agent that has the quality of inducing sleep; a narcotic.

Webster 1913