a. [ L. calefactorius. ] Making hot; producing or communicating heat. [ 1913 Webster ]

n. 1. (Eccl.) An apartment in a monastery, warmed and used as a sitting room. [ 1913 Webster ]

2. A hollow sphere of metal, filled with hot water, or a chafing dish, placed on the altar in cold weather for the priest to warm his hands with. [ 1913 Webster ]