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Definition of efficacy
Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of efficacy is as below...
Efficacy
(n.) Power to
produce
effects;
operation
or
energy
of an agent or
force;
production
of the
effect
intended;
as, the
efficacy
of
medicine
in
counteracting
disease;
the
efficacy
of
prayer..
Lern More About Efficacy
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Virtuous
::
Virtuous
(a.)
Having
power or
efficacy;
powerfully
operative;
efficacious;
potent.
Prevalent
::
Prevalent
(a.)
Gaining
advantage
or
superiority;
having
superior
force,
influence,
or
efficacy;
prevailing;
predominant;
successful;
victorious..
Inefficaciousness
::
Inefficaciousness
(n.) Want of
effect,
or of power to
produce
the
effect;
inefficacy..
Weight
::
Weight
(v. t.)
Importance;
power;
influence;
efficacy;
consequence;
moment;
impressiveness;
as, a
consideration
of vast
weight..
Prevailment
::
Prevailment
(n.)
Prevalence;
superior
influence;
efficacy.
Avail
::
Avail (v. i.) To be of use or
advantage;
to
answer
the
purpose;
to have
strength,
force,
or
efficacy
sufficient
to
accomplish
the
object;
as, the plea in bar must
avail,
that is, be
sufficient
to
defeat
the suit; this
scheme
will not
avail;
medicines
will not avail to check the
disease..
Virtue
::
Virtue
(n.)
Active
quality
or
power;
capacity
or power
adequate
to the
production
of a given
effect;
energy;
strength;
potency;
efficacy;
as, the
virtue
of a
medicine..
Available
::
Available
(a.)
Having
sufficient
power,
force,
or
efficacy,
for the
object;
effectual;
valid;
as, an
available
plea..
Potentness
::
Potentness
(n.) The
quality
or state of being
potent;
powerfulness;
potency;
efficacy.
Coefficacy
::
Coefficacy
(n.) Joint
efficacy.
Potency
::
Potency
(n.) The
quality
or state of being
potent;
physical
or moral
power;
inherent
strength;
energy;
ability
to
effect
a
purpose;
capability;
efficacy;
influence.
Nullify
::
Nullify
(a.) To make void; to
render
invalid;
to
deprive
of legal force or
efficacy.
Force
::
Force (n.)
Validity;
efficacy.
Efficacity
::
Efficacity
(n.)
Efficacy.
Ineffectualness
::
Ineffectualness
(n.) Want of
effect,
or of power to
produce
it;
inefficacy..
Virtually
::
Virtually
(adv.)
In a
virtual
manner;
in
efficacy
or
effect
only, and not
actually;
to all
intents
and
purposes;
practically..
Availableness
::
Availableness
(n.)
Competent
power;
validity;
efficacy;
as, the
availableness
of a
title..
Invalidity
::
Invalidity
(n.) Want of
validity
or
cogency;
want of legal force or
efficacy;
invalidness;
as, the
invalidity
of an
agreement
or of a
will..
Virtuality
::
Virtuality
(n.)
Potentiality;
efficacy;
potential
existence.
Null
::
Null (a.) Of no legal or
binding
force or
validity;
of no
efficacy;
invalid;
void;
nugatory;
useless.
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