Med. Also 7 cerat. [ad. L. cērātum cerate, neut. pa. pple. of cērāre to cover with wax, which seems to have in use varied with cērōtum, a. Gr. κηρωτόν cerate, neut. of κηρωτός waxed, covered with wax, f. κηροῦν to cover with wax. Cf. F. cérat (in Cotgr.), in 16th c. cérot.]
A kind of stiff ointment composed of wax together with lard or oil and other ingredients.
1543. Traheron, Vigos Chirurg., VIII. 199. The description of Oyntments, Cerates, Playsters, [etc.].
1658. Rowland, trans. Moufets Theat. Ins., 916. It [wax] is also the ground of all Cerats and Plaisters.
1810. Henry, Elem. Chem. (1840), II. 294. Fixed oils unite with wax, and form cerates.