/kal'euh fay"sheuhnt/ , n.
1. Med. a substance, as mustard, that produces a sensation of heat when applied to the body.
adj.
2. heating; warming.
[ 1655-65; calefacient- (s. of calefaciens, prp. of calefacere to make warm), equiv. to cale- warm (s. of calere to be warm) + -facient- -FACIENT ]