Emily Dickinson Lexicon

IN-TEG'U-MENT, n. [L. integumentum, intego, to cover; in and tego. See Deck.]

That which naturally invests or covers another thing; but appropriately and chiefly, in anatomy, a covering which invests the body, as the skin, or a membrane that invests a particular part. The skin of seeds and the shells of crustaceous animals are denominated integuments. Encyc.