efficacious
[ ef-i-key-shuh s ]
/ ˌɛf ɪˈkeɪ ʃəs /
adjective
capable of having the desired result or effect; effective as a means, measure, remedy, etc.: The medicine is efficacious in stopping a cough.
Origin of efficacious
OTHER WORDS FROM efficacious
Words nearby efficacious
effervesce,
effervescence,
effervescent,
effervescent salt,
effete,
efficacious,
efficacity,
efficacy,
efficiency,
efficiency apartment,
efficiency expert
Example sentences from the Web for efficaciousness
Nothing that we learn could possibly suggest to us the idea of what an influence or efficaciousness is.
The Elementary Forms of the Religious Life |Emile DurkheimA single one of its thrusts must equal and often surpass in efficaciousness the repeated wounds of the other.
Bramble-bees and Others |J. Henri FabreA friend of Homœopathy, not a physician, desired to test the efficaciousness of this plant.
British Dictionary definitions for efficaciousness
efficacious
/ (ˌɛfɪˈkeɪʃəs) /
adjective
capable of or successful in producing an intended result; effective as a means, remedy, etc
Derived forms of efficacious
efficaciously, adverb efficaciousness, nounWord Origin for efficacious
C16: from Latin
efficāx powerful, efficient, from
efficere to achieve; see
effect