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...

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..

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

Forcible :: Forcible (a.) Possessing force; characterized by force, efficiency, or energy; powerful; efficacious; impressive; influential..

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

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..

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

Valid :: Valid (a.) Having sufficient strength or force; founded in truth; capable of being justified, defended, or supported; not weak or defective; sound; good; efficacious; as, a valid argument; a valid objection..

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

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

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..

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

Barberry :: Barberry (n.) A shrub of the genus Berberis, common along roadsides and in neglected fields. B. vulgaris is the species best known; its oblong red berries are made into a preserve or sauce, and have been deemed efficacious in fluxes and fevers. The bark dyes a fine yellow, esp. the bark of the root..

Operative :: Operative (a.) Producing the appropriate or designed effect; efficacious; as, an operative dose, rule, or penalty..

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

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

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

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

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

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..

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