Table of Contents
noun. ['ˈɛfɪˌkæsi'] capacity or power to produce a desired effect.
- efficacia (Latin)
Rhymes with Efficacy
How do you pronounce efficacy?
Pronounce efficacy as ˈɛfɪˌkæsi.
US - How to pronounce efficacy in American English
UK - How to pronounce efficacy in British English
Sentences with efficacy
1. Noun, singular or mass
You can use borax as a weed killer, but you must follow careful guidelines for efficacy and safety.
Quotes about efficacy
1. For books are not absolutely dead things, but do contain a potency of life in them to be as active as that soul was whose progeny they are; nay, they do preserve as in a vial the purest efficacy and extraction of that living intellect that bred them.
- John Milton, Areopagitica
2. I should attempt to treat human vice and folly geometrically... the passions of hatred, anger, envy, and so on, considered in themselves, follow from the necessity and efficacy of nature... I shall, therefore, treat the nature and strength of the emotion in exactly the same manner, as though I were concerned with lines, planes, and solids.
- Baruch Spinoza, Ethics