Source : Webster's Revised Unabridged Dictionary (1913)

Puritanism \Pu"ri*tan*ism\, n.
   The doctrines, notions, or practice of Puritans.

Source : WordNet®

Puritanism
     n 1: the beliefs and practices characteristic of Puritans (most
          of whom were Calvinists who wished to purify the Church
          of England of its Catholic aspects)
     2: strictness and austerity in conduct and religion