DICTIONARY ENTRY
4 SYLLABLES
efficacious
/,ɛfə'keɪʃəs/ · ɛfəkeɪʃəs
Efficacious has 4 syllables: ef · fi · ca · cious.
ef
01
fi
02
ca
03
cious
04
adjective. Producing or capable of producing an intended result or having a striking effect.
adjective. Marked by qualities giving the power to produce an intended effect.
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