Definition: powerful

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Source: WordNet (r) 1.7 

powerful
     adj 1: having great power or force or potency or effect; "the most
            powerful government in western Europe"; "his powerful
            arms"; "a powerful bomb"; "the horse's powerful kick";
            "powerful drugs"; "a powerful argument" [ant: powerless]
     2: strong enough to knock down or overwhelm; "a knock-down
        blow" [syn: knock-down]
     3: having the power to influence or convince; "a cogent
        analysis of the problem"; "potent arguments" [syn: cogent,
         potent]
     4: (of a person) possessing physical strength and weight;
        rugged and powerful; "a hefty athlete"; "a muscular
        boxer"; "powerful arms" [syn: brawny, hefty, muscular,
         sinewy]
     5: displaying superhuman strength or power; "herculean
        exertions" [syn: herculean]
     adv : (Southern regional intensive) very; "the baby is mighty
           cute"; "he's mighty tired"; "it is powerful humid";
           "that boy is powerful big now"; "they have a right nice
           place" [syn: mighty, right]

Source: Webster's Revised Unabridged Dictionary (1913) 

Powerful \Pow"er*ful\, a.
   1. 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.

            The powerful grace that lies In herbs, plants,
            stones, and their true qualities.     --Shak.

   2. (Mining) Large; capacious; -- said of veins of ore.

   Syn: Mighty; strong; potent; forcible; efficacious;
        energetic; intense. -- Pow"er*ful*ly, adv. --
        Pow"er*ful*ness, n.

Source: The Free On-line Dictionary of Computing (2003-OCT-10) 

PowerFuL

   <language> A language combining functional programming and
   logic programming, using "angelic Powerdomains".

   (1998-06-30)