In*teg"u*ment (?), n. [L. integumentum, fr. integere to cover; pref. in- in, on + tegere to cover: cf. F. int'egument. See 1st n-, and Tegument.]
That which naturally invests or covers another thing, as the testa or the tegmen of a seed; specifically Anat., a covering which invests the body, as the skin, or a membrane that invests a particular.
© Webster 1913.