INTEGUMENT

[in.teg.u.ment] n [L integumentum, fr. integere to cover, fr. in- + tegere to cover--more at thatch] (ca. 1611): something that covers or encloses; esp: an enveloping layer (as a skin, membrane, or husk) of an organism or one of its parts -- in.teg.u.men.ta.ry adj