Definitions for efficaciousness

This page provides all possible meanings and translations of the word efficaciousness

Random House Webster's College Dictionary

ef•fi•ca•cious*ˌɛf ɪˈkeɪ ʃəs(adj.)

  1. capable of having the desired result or effect; effective as a means, measure, or remedy.

* Syn: See effective.

Origin of efficacious:

1520–30; < L efficāx. See efficient , -acious


Princeton's WordNet

  1. efficacy, efficaciousness(noun)

    capacity or power to produce a desired effect

    "concern about the safety and efficacy of the vaccine"


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