Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Power or capacity to produce a desired effect; effectiveness.
from The Century Dictionary.
- noun The quality of being efficacious or effectual; production of, or the capacity of producing, the effect intended or desired; effectiveness.
- noun Synonyms Efficiency, etc. (see
effectiveness ); virtue, force, energy.
from the GNU version of the Collaborative International Dictionary of English.
- noun Power to produce effects; operation or energy of an agent or force; production of the effect intended
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun uncountable Ability to produce a desired amount of a desired
effect .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun capacity or power to produce a desired effect
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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It has been shown to have long-term efficacy, meaning it could be administered in small doses, potentially reducing severity of side effects.
PhysOrg.com - latest science and technology news stories 2010
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It has been shown to have long-term efficacy, meaning it could be administered in small doses, potentially reducing severity of side effects.
Next Big Future 2010
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• Duration of efficacy is key to the entire question.
Marcia G. Yerman: An Interview with Dr. Diane M. Harper, HPV Expert Marcia G. Yerman 2010
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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.
Dana Ullman: Homeopathy: A Healthier Way to Treat Depression? Dana Ullman 2010
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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.
Archive 2009-10-01 2009
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If duration of efficacy is less than fifteen years, then no cancers are prevented, only postponed.
Marcia G. Yerman: An Interview with Dr. Diane M. Harper, HPV Expert Marcia G. Yerman 2010
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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.
Homeopathy: A Healthier Way to Treat Depression? Dana Ullman 2010
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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 2009
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The rise in efficacy of “Terrorism” is largely from the increased availability in inexpensive but highly effective weapons and equipment.
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"I am fairly skeptical about the long-term efficacy of this intervention," said Yunosuke Ikeda, chief foreign-exchange strategist at Nomura Securities Co.
Japan's Woes Remain Despite Currency Move Takashi Nakamichi 2011
vermontster commented on the word efficacy
Don't confuse with effective. They will know that you are impersonating a serious grad student.
June 28, 2008