[ ef-i-kuh-see ]
/ ˈɛf ɪ kə si /
noun, plural ef·fi·ca·cies.
capacity for producing a desired result or effect; effectiveness: a remedy of great efficacy.
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OTHER WORDS FROM efficacynon·ef·fi·ca·cy, noun
Words nearby efficacy
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British Dictionary definitions for efficacies
/ (ˈɛfɪkəsɪ) /
the quality of being successful in producing an intended result; effectiveness
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012