Crossword Buster

Clues for the word "EFFICACY"

We've had 4 crossword clues used for this word, and seen it 3 times in crosswords. It was last seen in Netword crossword on August 05, 2017.

Definition of efficacy

• n. - Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting disease; the efficacy of prayer.

Last Seen In

• Netword - August 05, 2017
• LA Times - August 20, 2010
• Guardian Quick - March 11, 2009