What does "efficacious" mean?
Efficacious: Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law. -- Ef`fi*ca"cious*ly, adv. -- Ef`fi*ca"cious*ness, n.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00