| Sheath 1. (n.) A case for the reception of a sword, hunting knife, or other long and slender instrument; a scabbard. 2. (n.) Any sheathlike covering, organ, or part. 3. (n.) The base of a leaf when sheathing or investing a stem or branch, as in grasses. 4. (n.) One of the elytra of an insect. Thesaurus Entries Leatherette, Leatheroid, case, casing, coat, cuticle, dermis, encasement, fell, fleece, flesh, fur, furring, hide, imitation fur, imitation leather, integument, jacket, leather, leather paper, outer layer, outer skin, pelt, peltry, rawhide, rind, sheathing, skin, skins, tegument, vair |