potency


potency (http://definr.com/potency)

     n 1: possession of controlling influence; "the deterrent power of
          nuclear weapons"; "the power of his love saved her"
          [syn: power, powerfulness] [ant: powerlessness]
     2: capacity to produce strong physiological or chemical
        effects: "the toxin's potency"; "the strength of the
        drinks" [syn: effectiveness, strength]
     3: the inherent capacity for coming into being [syn: potential,
         potentiality]
     4: the state of being potent; a male's capacity to have sexual
        intercourse