transcription, транскрипция: [ ˌe-fə-ˈkā-shəs ]
adjective
Etymology: Latin efficac-, efficax, from efficere
Date: 1528
: having the power to produce a desired effect
an efficacious remedy
Synonyms: see effective
• ef·fi·ca·cious·ly adverb
• ef·fi·ca·cious·ness noun