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