Difference between Effective and Efficacious

EFFECTIVE vs EFFICACIOUS: NOUN

The serviceable soldiers in a country; an army or any military body, collectively.
A soldier or a piece of military equipment that is ready for combat.
Specie or coin, as distinguished from paper currency; -- a term used in many parts of Europe.
One who is capable of active service.
That which produces a given effect; a cause.
The number of men actually doing duty, or the strength of a company, a regiment, or an army, in the field or on parade.
A soldier fit for duty.

Producing or capable of producing an intended result or having a striking effect
Exerting force or influence
Works well as a means or remedy
Having an intended or expected effect.
Producing a strong impression or response; striking.
Operative; in effect.
Existing in fact; actual.
Prepared for use or action, especially in combat.
Able to accomplish a purpose; functioning effectively
Existing in fact; not theoretical; real
Equipped and ready for service
Ready for service
Actually in effect.
Efficient, serviceable, or operative, available for useful work.
Producing a decided or decisive effect.
Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative
Having the power to produce a required effect or effects.

Possessing the quality of being effective; productive of, or powerful to produce, the effect intended.
Producing or capable of producing an intended result or having a striking effect
Marked by qualities giving the power to produce an intended effect
Effective

Serving to impress or affect with admiration; producing a decided impression of beauty or a feeling of admiration at the first presentation; impressive; striking; specifically, artistically strong or successful: as, an effective performance; an effective picture.
Capable of producing effect; fit for action or duty; adapted for a desired end: as, the effective force of an army or of a steam-engine is so much; effective capacity.
Serving to effect the intended purpose; producing the intended or expected effect or result; operative; efficacious: as, an effective cause; effective proceedings.
Actual; real.
Functioning effectively
Existing in fact
Not theoretical
Real
Able to accomplish a purpose

Producing the desired effect; having power adequate to the purpose intended; effectual in operation or result.
Synonyms Efficient, Effectual, etc. (see effective); active, operative, energetic.

Hard hitting, Telling, In effect, Impelling, Trenchant, Actual, Operative, Existent, Operational, Impressive, Good, Competent, Effectual, Efficacious, Efficient

Therapeutic, Efficiency, Effectively, Efficiently, Successful, Efficient, Effectiveness, Efficacy, Telling, Hard hitting, Trenchant, Impressive, Impelling, Effectual, Effective

Hard hitting, Telling, In effect, Impelling, Trenchant, Actual, Operative, Existent, Operational, Impressive, Good, Competent, Effectual, Efficacious, Efficient

Prophylactic, Therapeutic, Efficiency, Efficiently, Successful, Efficient, Effectiveness, Telling, Efficacy, Hard hitting, Trenchant, Impressive, Impelling, Effectual, Effective

This new system will be effective upon publication.
Designed and developed effective databases as per instructions.
IKEA property, including our parking lots, effective immediately.
Definition of Effective Interest Rate The effective interest rate is the true rate of interest earned.
Any changes to the compensation of Originator are effective for covered transactions that are locked by Norcom the specified effective date of the changes.
An agricultural lien is perfected when it becomes effective if the applicable requirements are satisfied before the agricultural lien becomes effective.
HIV care and support services and effective system for medication delivery creates a very efficient and effective service delivery mechanism for this initiative.
The impact on effective project delivery due to increased congestion, higher demand for service, and declining revenues on effective project delivery cannot be ignored.
For the avoidance of doubt, this Release Agreement shall become effective on the Excess Distribution Date, and not the Final Effective Date.
Commission determined that key components included prioritization of civil rights, effective methods to determine compliance, and effective enforcement techniques.

They have proven to be efficacious and safe.
Administer the lowest efficacious dose of pain medication.
TT as a unique and efficacious healing modality.
They are very efficacious in rheumatism, gout, etc.
Getting efficacious interventions incorporated into practice: lessons learned.
That efficacious basketball player never misses a shot!
Nations formed under covenants that will be efficacious.
Even less efficacious is the argument that Ms.
Amphotericin B, although efficacious, must be administered intravenously.
ALA was the most efficacious in increasing TTR and RBP concentrations, while ascorbic acid was the least efficacious.

Is the sulfated zirconia catalyst efficacious for acid-catalyzed organic synthesis?
Is early postoperative ablation of atrial flutter safe and efficacious?
Is Servier's Valdoxan more efficacious than other antidepressants?
Is Edelweiss callus culture extract efficacious for UVB treatment?
Are opioid antagonists efficacious in pain after stroke?
Is physiotherapy efficacious in post cardiac surgery?
How can educators empower self-efficacious leaders?
Is coupling media efficacious for therapeutic ultrasound?
What is the most efficacious psychological intervention?
Is iron polymaltose complex efficacious in children?