/kal'euh fak"teuh ree, -fak"tree/ , adj., n., pl. calefactories .
adj.
1. serving to heat.
n.
2. a heated parlor or sitting room in a monastery.
[ 1530-40; calefactorius having a warming or heating power, equiv. to L calefac ( ere ) to make warm (see CALEFACIENT) + -torius -TORY 1 ]