Producing, or having adequate power or force to produce, an intended effect; adequate; efficient; operative; decisive. Effectual steps for the suppression of the rebellion. (Macaulay) effectual calling, a doctrine concerning the work of the holy spirit in producing conviction of sin and acceptance of salvation by christ, one of the five points of Calvinism. See Calvinism.
Synonym: effectual, Efficacious, effective.
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... structures require a lot of fuel to be burnt which emits a large amount of carbon dioxide in the atmosphere. Methane is more than 20 times as effectual as CO2 at entrapping heat in the atmosphere. Methane is obtained from resources such as rice paddies, bovine flatulence, bacteria in bogs ...
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