sheathing

bark carapace case casing coating crust cutis derma dermis epidermis fell film fur hide hull husk integument jacket membrane outside parchment peel pelt rind sheath shell shuck slough surface tegument vellum

center core inside interior middle

covering

bushing filling liner padding quilting stuffing wadding wainscot wainscoting wall

inner coating inner layer

covering

cover scabbard spathe wrapping

bark coating crust fur husk jacket membrane rind sheath surface

carapace case casing cutis derma dermis epidermis fell film hide hull integument outside parchment peel pelt shell shuck slough tegument vellum

core

center inside interior middle

body

capsule husk skin

case covering hull sheath shell vessel