different between efficacy vs knack
efficacy
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)
- 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.
- 2005, Flay et al. Standards of Evidence: Criteria for Efficacy, Effectiveness and Dissemination DOI: 10.1007/s11121-005-5553-y
- Degree of ability to produce a desired effect.
- 1996, Moskovich, Patent application PCT/US1996/003658
- Toothbrush with improved efficacy
- 1996, Moskovich, Patent application PCT/US1996/003658
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.
efficacy From the web:
- what efficacy means
- what efficacy is the flu shot
- what efficacy does a vaccine need
- what efficacy is the pfizer vaccine
- what efficacy is oxford vaccine
- what efficacy means vaccine
- what efficacy is the astrazeneca vaccine
knack
English
Etymology
Use as "special skill" from 1580. Possibly from 14th century Middle English krak (“a sharp blow”), knakke, knakken, from Middle Low German, by onomatopoeia. Latter cognate to German knacken (“to crack”). See also crack.
Pronunciation
- IPA(key): /næk/
- Audio (UK)
- Rhymes: -æk
Noun
knack (plural knacks)
- A readiness in performance; aptness at doing something. [from 1580]
- Synonyms: skill, facility, dexterity
- 2005, Plato, Sophist. Translation by Lesley Brown. 254a.
- The sophist runs for cover to the darkness of what is not and attaches himself to it by some knack of his;
- A petty contrivance; a toy.
- Synonyms: plaything, knickknack, toy
- Something performed, or to be done, requiring aptness and dexterity. [from mid 14th c.]
- Synonyms: trick, device
Derived terms
- knackless
Translations
Verb
knack (third-person singular simple present knacks, present participle knacking, simple past and past participle knacked)
- (obsolete, Britain, dialect) To crack; to make a sharp, abrupt noise; to chink.
- To speak affectedly.
- (Can we find and add a quotation of Halliwell to this entry?)
Translations
References
knack From the web:
- what knack means
- what knackered mean
- what knack means in spanish
- what knackered means in spanish
- what knack means in farsi
- what's knacker drinking
- what knackered mean in arabic
- knack what does it mean
Share
Tweet
+1
Share
Pin
Like
Send
Share
you may also like
- efficacy vs knack
- sustain vs buttress
- foul vs bitter
- warrant vs entrusting
- shout vs cheer
- rosiness vs shine
- waste vs untilled
- senselessness vs puerility
- persevering vs assiduous
- ville vs nauseating
- exigency vs wish
- precipitate vs flying
- chagrin vs distress
- snick vs chip
- dodge vs intrigue
- merciful vs indulgent
- outlaw vs vagrant
- interesting vs vivacious
- body vs crush
- opinion vs recommendation