Found 1 items, similar to calorific rays.
English → English (gcide) Definition: Calorific rays Calorific \Cal`o*rif"ic\, a. [L. calorificus; calor heat + facere to make; cf. F. calorifique.] Possessing the quality of producing heat; heating. [1913 Webster] Calorific rays, the invisible, heating rays which emanate from the sun, and from burning and heated bodies. [1913 Webster]