effectual : | |||||||||||||
sufficient to produce a result; "a man to whom painting was but another and less effectual way of writing dramas or novels or history" exerting or capable of exerting strong physiological or chemical effects; "an effectual vaccine" potent producing or capable of producing an intended result or having a striking effect; "an air-cooled motor was more effective than a witch''s broomstick for rapid long-distance transportation"-LewisMumford; "effective teaching methods"; "effective steps towar hard-hitting, impelling, impressive, rough-and-ready |
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