Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of efficacious is as below...

Virtuate :: Virtuate (v. t.) To make efficacious; to give virtue of efficacy.

Supersede :: Supersede (v. t.) To make void, inefficacious, or useless, by superior power, or by coming in the place of; to set aside; to render unnecessary; to suspend; to stay..

Powerful :: Powerful (a.) Full of power; capable of producing great effects of any kind; potent; mighty; efficacious; intense; as, a powerful man or beast; a powerful engine; a powerful argument; a powerful light; a powerful vessel..

Snakeroot :: Snakeroot (n.) Any one of several plants of different genera and species, most of which are (or were formerly) reputed to be efficacious as remedies for the bites of serpents; also, the roots of any of these..

Anticatarrhal :: Anticatarrhal (a.) Efficacious against catarrh.

Inefficacious :: Inefficacious (a.) Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent.

Effectually :: Effectually (adv.) With effect; efficaciously.

Drastic :: Drastic (a.) Acting rapidly and violently; efficacious; powerful; -- opposed to bland; as, drastic purgatives..

Prevailing :: Prevailing (a.) Having superior force or influence; efficacious; persuasive.

Inefficient :: Inefficient (a.) Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures..

Potently :: Potently (adv.) With great force or energy; powerfully; efficaciously.

Inefficaciously :: Inefficaciously (adv.) without efficacy or effect.

Efficacious :: Efficacious (n.) Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law..

Antipyretic :: Antipyretic (a.) Efficacious in preventing or allaying fever.

Avaiably :: Avaiably (adv.) In an available manner; profitably; advantageously; efficaciously.

Inflential :: Inflential (a.) Exerting or possessing influence or power; potent; efficacious; effective; strong; having authority or ascendency; as, an influential man, station, argument, etc..

Theriaca :: Theriaca (n.) An ancient composition esteemed efficacious against the effects of poison; especially, a certain compound of sixty-four drugs, prepared, pulverized, and reduced by means of honey to an electuary; -- called also theriaca Andromachi, and Venice treacle..

Antisyphilitic :: Antisyphilitic (a.) Efficacious against syphilis.

Antiodontalgic :: Antiodontalgic (a.) Efficacious in curing toothache.

Energetical :: Energetical (a.) Exhibiting energy; operating with force, vigor, and effect; forcible; powerful; efficacious; as, energetic measures; energetic laws..

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