Added to
Favorites
Dictionary
Thesaurus
Word Dynamo
Quotes
Reference
Translator
Spanish
Log In
Sign Up
Introducing a cool
new way to learn!
efficacy
Use
Efficacy
in a sentence
ef·fi·ca·cy
/
ˈɛf
ɪ
kə
si
/
Show Spelled
[
ef
-i-k
uh
-see
]
Show IPA
noun,
plural
ef·fi·ca·cies.
capacity for producing a desired result or effect; effectiveness:
a
remedy
of great efficacy.
Origin:
1520–30;
<
Latin
efficācia,
equivalent to
efficāc-
(see
efficacious
) +
-ia
-y
3
Related forms
non·ef·fi·ca·cy,
noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
|
Link To
efficacy
Collins
World English Dictionary
efficacy
(ˈɛfɪkəsɪ)
—
n
the quality of being successful in producing an intended result; effectiveness
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Relevant Questions
What Is Political Effica...
How To Increase Selfeffi...
What Is Self Efficacy?
What Is Efficacious?
How To Calculate Efficac...
What Is Efficaciousness?
What Is Political Effica...
How To Calculate Efficac...
What Is Self Efficacy?
How To Increase Selfeffi...
00:10
Efficacy
is a GRE word you need to know.
So is
torpid
. Does it mean:
So is
astringent
. Does it mean:
So is
homogeneous
. Does it mean:
consisting or made of wood; wood:
slow; dull; apathetic; lethargic.
cheerful readiness, promptness, or willingness:
caustic; pungent
Disposed or inclined to revenge; vengeful: pg. 46
composed of parts that are all of the same kind
LEARN MORE GRE WORDS WITH WORD DYNAMO...
Etymonline
Word Origin & History
efficacy
1520s, from L. efficacia, from efficax (gen. efficacis) "effective," from efficere "work out, accomplish" (see
effect
).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
Use a standard debate procedure and have the non-debating students evaluate the
efficacy
of the arguments.
Strong crypto, in their view, was an answer of almost magical
efficacy
.
Researchers are now trying to find out to what extent the
efficacy
and safety
of many new drugs is influenced by genetic factors.
Of course, past spending can be useful evidence for the
efficacy
of future
spending.
Debates about the
efficacy
of vegetarianism follow us from cradle to wheelchair.
The manufacturer also touts its
efficacy
among the hearing impaired or very old.
What enforced his instructions, and gave them weight and
efficacy
, was his example.
But this makes claims of
efficacy
impossible to test objectively.
While medications may be a promising option, their
efficacy
over the long term has yet to be proven.
If this is in accord with observations, the
efficacy
of the approach is established.
Upgrade to Ad-free Premium Membership!
Related Words
force
nonmoral
operation
phantom
placebo
sacramentalism
understrength
weight
MORE
Matching Quote
"We must bear in mind the distinction between fame and honor. A virtuous person is an honorable person, a person who ought to be honored by the community in which he or she lives. But the virtuous person does not seek honor, being secure in his or her own self-respect. Lack of honor does not in any way detract from the
efficacy
of moral virtue as an indispensable operative means in the pursuit of happiness.... Those totally lacking in virtue may achieve fame as readily as, perhaps even more easily than those who are virtuous. Fame belongs to the great, the outstanding, the exceptional, without regard to virtue or vice. Infamy is fame no less than good repute. The great scoundrel can be as famous as the great hero; there can be famous villains as well as famous saints. Existing in the reputation a person has regardless of his or her accomplishments, fame does not tarnish as honor does when it is unmerited."
-Mortimer J. Adler
MORE
Related Searches
Self efficacy
Efficacy vs effectiv...
Difference between e...
Self efficacy theory
Political efficacy
Teacher efficacy
Self efficacy scale
Internal efficacy
Nearby Words
efferous
effervesce
effervescence
effervescent
effervescent sa...
effervescently
effervescible
effervescingly
effervescive
effet
effete
effetely
effeteness
effi'caciously
effi'caciousnes...
effic.
efficacious
efficaciously
efficaciousness
efficacity
efficacy
efficience
efficiency
efficiency apar...
efficiency engi...
efficiency expe...
efficiency-apar...
efficiency-engi...
efficiency-expe...
efficient
efficient cause
efficient-cause
efficiently
effie
effierce
effigial
effigiate
effigiation
effigy
effing
effing around
Synonyms
effectiveness
performance
competence
capability
influence
strength
capacity
MORE
Synonym Game
evert
reify
catalyze
alchemize
PLAY
Find the Right Word
How do you spell judgement/judgment? What does it mean?
Partners:
Word
Bloglines
Citysearch
The Daily Beast
Ask Answers
Ask Kids
Life123
Sendori
Home Advisor
Copyright ©
2013 Dictionary.com, LLC
. All rights reserved.
About
PRIVACY POLICY
Terms
API
Careers
Advertise with Us
Contact Us
Suggest a Word
Help
Please
Login
or
Sign Up
to use the Favorites feature
Please
Login
or
Sign Up
to use the Recent Searches feature
FAVORITES
RECENT