efficacy — the ability to produce a desired or intended result; effectiveness
Part of speech: NOUN
Definition: the ability to produce a desired or intended result; effectiveness
Pronunciation (IPA): /ˈefɪkəsi/
Korean meaning: 효능, 효과, 효력
Korean pronunciation: 에-피-커-시 (강세: 에)
Example Sentences
- The efficacy of his study method was questionable - he fell asleep on his textbook every night.
- Scientists are studying the efficacy of chocolate as a cure for Monday blues.
- The efficacy of this medicine depends on proper dosage and timing.
efficacy
NOUN//ˈefɪkəsi//
the ability to produce a desired or intended result; effectiveness

Doctor showing medicine's effectiveness
Sign up free to see all content
Etymology, AI images, rhymes, collocations & examples — all in one!
Start for Free
Tracy proves the efficacy of making lacy fabric sturdy!
Sign up free to see all content
Etymology, AI images, rhymes, collocations & examples — all in one!
Start for Free🎤Pronunciation
🌳Etymology
Origin
From Latin 'efficacia' meaning 'efficacy' or 'efficiency', derived from 'efficax' (effective, powerful) which comes from 'efficere' meaning 'to work out' or 'to accomplish'.
Sign up free to see all content
Etymology, AI images, rhymes, collocations & examples — all in one!
Start for Free🎵Rhyme
Sign up free to see all content
Etymology, AI images, rhymes, collocations & examples — all in one!
Start for Free📝Examples
“The efficacy of his study method was questionable - he fell asleep on his textbook every night.”
“Scientists are studying the efficacy of chocolate as a cure for Monday blues.”
“The efficacy of this medicine depends on proper dosage and timing.”
“Researchers questioned the efficacy of the traditional treatment method.”
Sign up free to see all content
Etymology, AI images, rhymes, collocations & examples — all in one!
Start for Free