Efficacy is a 8 letter English word. It's valid Scrabble word worth 21 points. It's valid Words with friends word worth 22 points.
You can make 93 anagrams from letters in efficacy (acceffiy).
1520-30; Latin efficācia, equivalent to efficāc- (see efficacious) + -ia -y3
On average, the vaccine has an efficacy of about 60 percent.
All races have uttered this prayer, apparently with a firm belief in its efficacy.
Most Pennsylvanians now support a moratorium on capital punishment until its efficacy can be determined.
A few tears mingled with the draught, and perhaps gave it all its efficacy.
He no more believes in the efficacy of soap than in the efficacy of a good reputation.
The State Department emphasized American assistance for the rebels; the White House downplayed the efficacy of that assistance.
Much has been said concerning the efficacy of the Water Fly as a lure.
Day by day her faith in the efficacy of her petitions had grown upon her.
But the conditions on the ground in Syria are not the same, and cast great doubt on the efficacy of airstrikes.
The efficacy of bandying threats of going to hell met its match in the Civil War.
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