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Webster's Dictionary (1865)

Ef-fec'tu-al, a.

adjective

(fĕkt/yū-al), a. [Fr. effectual, effectuel, It. effectuale. See EFFECT, n.]

  1. Producing, or having adequate power or force to produce, an intended effect; adequate; efficient. “Effectual steps for the suppression of the rebellion.” Macaulay.
  2. Expressive of facts; veracious. [Obs.] Shak.