different between effector vs efficacy

English

Noun

effector (plural effectors)

1. (biology) Any muscle, organ etc. that can respond to a stimulus from a nerve.
2. (biology) The part of a nerve that carries a stimulus to a muscle etc.
3. (biology) Any small molecule that effects the function of an enzyme by binding to an allosteric site.
4. An actuator.

Related terms

• effect
• effective
• effectiveness
• effectivity
• effectome
• effectorless
• effectual
• effectuate
• efficacious
• efficacity
• efficacy
• efficiency
• efficient

See also

• receptor

English

Etymology

From Old French efficace, from Late Latin effic?cia (“efficacy”), from effic?x (“efficacious”); see efficacious.

Pronunciation

• IPA^(key): /??f.?.k?.si/

Noun

efficacy (usually uncountable, plural efficacies)

1. Ability to produce a desired effect under ideal testing conditions.
   • 2005, Flay et al. Standards of Evidence: Criteria for Efficacy, Effectiveness and Dissemination DOI: 10.1007/s11121-005-5553-y

     Efficacy refers to the beneficial effects of a program or policy under optimal conditions of delivery, whereas effectiveness refers to effects of a program or policy under more real-world conditions.

2. Degree of ability to produce a desired effect.
   • 1996, Moskovich, Patent application PCT/US1996/003658

     Toothbrush with improved efficacy

Synonyms

• efficacity

Related terms

Translations

Further reading

• efficacy in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• efficacy in The Century Dictionary, New York, N.Y.: The Century Co., 1911.