How to Pronounce "efficacy"
word
ˈɛfɪˌkæsi
EF-i-kass-ee
ˈɛfɪkəsi
EF-i-kuh-see
Definition
Efficacy is the ability of something, such as a medicine or a method, to produce the intended or desired result.
IPA Transcription
American English
ˈɛfɪˌkæsi
British English
ˈɛfɪkəsi
Simplified Pronunciation
US
EF-i-kass-ee
UK
EF-i-kuh-see
Listen in Context
The efficacy of the new drug was tested in the laboratory.
Scientists study the efficacy of vaccines before using them widely.
There is still debate about the efficacy of this method.
We're waiting for more data to confirm the efficacy of the treatment.