The Collaborative International Dictionary of English v.0.48:

Dermis \Der"mis\, n. [NL. See Derm.] (Anat.)
   The deep sensitive layer of the skin beneath the scarfskin or
   epidermis; -- called also true skin, derm, derma,
   corium, cutis, and enderon. See Skin, and Illust. in
   Appendix.
   [1913 Webster]

WordNet (r) 3.0 (2006):

dermis
    n 1: the deep vascular inner layer of the skin [syn: dermis,
         corium, derma]

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "dermis":
   Leatherette, Leatheroid, blastoderm, coat, corium, cuticle, cutis,
   cutis vera, derma, ectoblast, ectoderm, endothelium, entoderm,
   epiblast, epidermis, epithelium, fell, fleece, flesh, fur, furring,
   hide, hypodermis, imitation fur, imitation leather, integument,
   jacket, leather, leather paper, mesoderm, outer layer, outer skin,
   pavement epithelium, pelt, peltry, rawhide, rind, scarfskin,
   sheath, skin, skins, tegument, true skin, vair