premonstratensian

from The Century Dictionary.

• Of or relating to the Premonstrants: as, the Premonstratensian order.
• noun Same as Premonstrant.

from the GNU version of the Collaborative International Dictionary of English.

• noun (R. C. Ch.) One of a religious order of regular canons founded by St. Norbert at Prémontré, in France, in 1119. The members of the order are called also White Canons, Norbertines, and Premonstrants.