CORIUM

‖Co″ri‐um (k?″r?–?m), n. [[L. corium leather.]] 1. 1. Armor made of leather, particularly that used by the Romans; used also by Enlish soldiers till the reign of Edward I. Fosbroke.
2. 2. (Anat.) (a) Same as Dermis. (b) The deep layer of mucous membranes beneath the epithelium.