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Producing or sufficient to produce a desired effect. See Synonyms at effective.
[Middle English effectuel, from Old French, from Late Latin effectuālis, from Latin effectus, result, effect; see effect.]
ef·fec′tu·al′i·ty (-ăl′ĭ-tē) n.
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|Noun||1.||effectuality - power to be effective; the quality of being able to bring about an effect|
power, powerfulness - possession of controlling influence; "the deterrent power of nuclear weapons"; "the power of his love saved her"; "his powerfulness was concealed by a gentle facade"