efficaciousness : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: efficaciousness	by the DICT Development Group
2 results for efficaciousness
From WordNet (r) 3.0 (2006) [wn]:
efficaciousness n capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine" Synonym(s): efficacy, efficaciousness Antonym(s): inefficaciousness, inefficacy
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Efficacious \Ef`fica"cious\, a. [L. eficax, -acis, fr. efficere. See {Effect}, n.] Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law. Syn: See {Effectual}. -- {Ef`fica"ciously}, adv. -- {Ef`fica"cious*ness}, n.