Definition of: calefacient

(kal′ə·fā′shənt) adjective
Causing heat or warmth.
—noun Med. Something that produces heat or warmth, as a mustard plaster. [<L calefaciens, -entis. ppr. of calefacere <calere be warm + facere make, cause]
—al′e·fac′tion (-fak′shən) noun
—cal′e·fac′tive adjective