'Puissance' definitions:

Definition of 'puissance'

From: WordNet
noun
Power to influence or coerce; "the puissance of the labor vote"

Definition of 'Puissance'

From: GCIDE
  • Puissance \Pu"is*sance\, n. [F., fr. puissant. See Puissant, and cf. Potency, Potance, Potence.] Power; strength; might; force; potency. " Youths of puissance." --Tennyson. [1913 Webster]
  • The power and puissance of the king. --Shak. [1913 Webster]
  • Note: In Spenser, Shakespeare, and Milton, puissance and puissant are usually dissyllables. [1913 Webster]