Calefacient definition, Medicine/Medical. a substance, as mustard, that produces a sensation of heat when applied to the body. See more. Dictionary.com Word of the Day Translate Games Blog Thesaurus.com Apps Favorites ...
calefacient (ˌkælɪˈfeɪʃənt) adj 1. causing warmth n 2. (Medicine) med an agent that warms, such as a mustard plaster [C17: from Latin calefaciēns, from calefacere to heat] calefaction n Thesaurus Antonyms Related Words Synonyms Legend: