Soporiferous

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Soporiferous \Sop`o*rif"er*ous\, a. [L. soparifer; sopor a heavy
     sleep + ferere to bring.]
     Causing sleep; somniferous; soporific. "Soporiferous
     medicine." --Swift.
     [1913 Webster] -- {Sop`o*rif"er*ous*ly}, adv. --
     {Sop`o*rif"er*ous*ness}, n.


     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  soporiferous
       adj 1: sleep inducing [syn: {soporific}, {somniferous}, {somnific},
               {hypnogogic}, {hypnagogic}]
       2: inducing mental lethargy; "a narcotic speech" [syn: {narcotic},
           {soporific}]