calefacient adj 1: producing the sensation of heat when applied to the body; "a mustard plaster is calefacient" [syn: {calefacient}, {warming}]
Calefacient \Cal`e*fa"cient\, a. [L. calefaciens p. pr. of calefacere to make warm; calere to be warm + facere to make.] Making warm; heating. [R.] [1913 Webster]
Calefacient \Cal`e*fa"cient\, n. A substance that excites warmth in the parts to which it is applied, as mustard. [1913 Webster]