Source : Webster's Revised Unabridged Dictionary (1913)

Premonstratensian \Pre*mon`stra*ten"sian\, n. [F.
   pr['e]montr['e], fr. Pr['e]montr['e], fr. L. pratum
   monstratum.] (R. C. Ch.)
   One of a religious order of regular canons founded by St.
   Norbert at Pr['e]montr['e], in France, in 1119. The members
   of the order are called also {White Canons}, {Norbertines},
   and {Premonstrants}.