Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Power or capacity to produce a desired effect; effectiveness.
Century Dictionary and Cyclopedia
- n. The quality of being efficacious or effectual; production of, or the capacity of producing, the effect intended or desired; effectiveness.
- n. Synonyms Efficiency, etc. (see effectiveness); virtue, force, energy.
Wiktionary
- n. Ability to produce a desired amount of a desired effect.
GNU Webster's 1913
- n. Power to produce effects; operation or energy of an agent or force; production of the effect intended
WordNet 3.0
- n. capacity or power to produce a desired effect
Etymologies
- Latin efficācia, from efficāx, efficāc-, efficacious; see efficacious.
Examples
“It has been shown to have long-term efficacy, meaning it could be administered in small doses, potentially reducing severity of side effects.”
“The rise in efficacy of “Terrorism” is largely from the increased availability in inexpensive but highly effective weapons and equipment.”
“More information on the homeopathic treatment of mental illness and more scientific evidence verifying its efficacy is contained in a newly published textbook on the subject, Homeopathy and Mental Health Care: Integrative Practice, Principles, and Research.”
The Huffington Post: Dana Ullman: Homeopathy: A Healthier Way to Treat Depression?
“In my own clumsy way I am merely trying to point out that thinking that you can understand Buddhist practice and thought without experiencing them and accepting the possibility of their efficacy is kind of like pretending to understand science while disbelieving the validity of mathematics.”
A New Hope for Interstellar Travel? « L.E. Modesitt, Jr. – The Official Website
“I am fairly skeptical about the long-term efficacy of this intervention," said Yunosuke Ikeda, chief foreign-exchange strategist at Nomura Securities Co.”
The Wall Street Journal: Japan's Woes Remain Despite Currency Move
“If duration of efficacy is less than fifteen years, then no cancers are prevented, only postponed.”
The Huffington Post: Marcia G. Yerman: An Interview with Dr. Diane M. Harper, HPV Expert
“• Duration of efficacy is key to the entire question.”
The Huffington Post: Marcia G. Yerman: An Interview with Dr. Diane M. Harper, HPV Expert
“Not because they're corrupt, or deceitful or because they don't believe in efficacy of the public option, but because they don't believe the system would allow it to happen.”
“However, one of our group has an interesting alternate proposal – that the points go up in efficacy as you use them.”
“Those chosen enter an oligopolistic "industry" encompassing businesses (corporate finance, M&A, asset management) whose efficacy is rarely questioned, let alone their fee structures, and a capital markets operation premised on levering up in a mad quest for excess yield.”
Lists
These user-created lists contain the word ‘efficacy’.
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GRE Barrons Wordlist
A complete Barron's Wordlist for GRE preparation. Your online flashcard replacement.
abase, abash, abate, abbreviate, abdicate, aberrant, aberration, abet, abeyance, abhor, abject, abjure and 4084 more...
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Ditrochaic Words with the Accent on the First S...
This is my favorite meter for single words. You could call it BUH-duh-buh-duh.
I collect them and cherish them; please add some. Phrases are also accepted if they've, you know, got it.helicopter, stratocaster, watermelon, telecaster, percolator, studebaker, flabbergasted, dramaturgy, carburator, copenhagen, pomegranate, metallurgy and 13 more...
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Psycho
To see,feel, touch people as objects with emotion instead as empty shells. These objects may be hollow or shallow or solid. But it has shape which can be shaped further and polished well. With that...
egodystonic, egosyntonic, narcissism, altruism, empathy, efficacy, epigenetic, congruence, prognosis, etiology, iatrogenic, tacit and 1 more...
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Lingering Irritation
Intensely disliked words from (a) grad program(s) in social sciences. At first they sound tricky and important. Take note! "Modeling is an important aspect in education. Eschew obfuscation."
...zeitgeist, praxis, cathexis, dissertation, reflexive, reflective, empathetic, empathic, paucity, diversity, intervention, efficacy and 23 more...
vermontster Don't confuse with effective. They will know that you are impersonating a serious grad student. Jun 28, 2008