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There are 13 words containing EFFICA

EFFICACYefficacy n. Ability to produce a desired effect under ideal testing conditions.
efficacy n. Degree of ability to produce a desired effect; effectiveness.
EFFICACY n. effectiveness.
EFFICACIESefficacies n. Plural of efficacy.
EFFICACY n. effectiveness.
EFFICACITYefficacity n. Efficacy.
EFFICACITY n. the state of being efficacious.
INEFFICACYinefficacy n. The condition of being ineffective.
INEFFICACY n. lack of power to produce a desired effect, also INEFFICACITY.
EFFICACIOUSefficacious adj. (Formal) Effective; possessing efficacy.
EFFICACIOUS adj. having the power to produce a desired effect.
EFFICACITIESefficacities n. Plural of efficacity.
EFFICACITY n. the state of being efficacious.
INEFFICACIESinefficacies n. Plural of inefficacy.
INEFFICACY n. lack of power to produce a desired effect, also INEFFICACITY.
INEFFICACITYINEFFICACITY n. lack of power to produce a desired effect, also INEFFICACY.
EFFICACIOUSLYefficaciously adv. In an efficacious manner.
EFFICACIOUS adv. having the power to produce a desired effect.
INEFFICACIOUSinefficacious adj. Incapable of having the intended consequence.
inefficacious adj. Not effective.
INEFFICACIOUS adj. lacking the power to produce a desired effect.
INEFFICACITIESINEFFICACITY n. lack of power to produce a desired effect, also INEFFICACY.
EFFICACIOUSNESSefficaciousness n. Quality of being efficacious.
EFFICACIOUS n. having the power to produce a desired effect.
INEFFICACIOUSLYinefficaciously adv. Without efficacy or effect.
INEFFICACIOUS adv. lacking the power to produce a desired effect.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 23 words
  • Scrabble in French: 10 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 10 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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