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Meaning of efficacious


1 definition found

From WordNet (r) 3.0 (2006) [wn]:

  efficacious
      adj 1: marked by qualities giving the power to produce an
             intended effect; "written propaganda is less efficacious
             than the habits and prejudices...of the readers"-Aldous
             Huxley; "the medicine is efficacious in stopping a cough"
             [ant: {inefficacious}]
      2: producing or capable of producing an intended result or
         having a striking effect; "an air-cooled motor was more
         effective than a witch's broomstick for rapid long-distance
         transportation"-LewisMumford; "effective teaching methods";
         "effective steps toward peace"; "made an effective entrance";
         "his complaint proved to be effectual in bringing action";
         "an efficacious law" [syn: {effective}, {effectual},
         {efficacious}] [ant: {ineffective}, {ineffectual},
         {uneffective}]


WordNet ® Princeton University. http://wordnet.princeton.edu

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