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efficacy
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Pronunciation
change
IPA
(
key
)
:
/ˈɛf.ɪ.kə.si/
Audio (UK)
(
file
)
Noun
change
Singular
efficacy
Plural
none
(
uncountable
)
Efficacy
is the
ability
to produce a
effect
or
result
that is
desired
.
