1.nounSomething which covers; a covering or coating.
"1658: But in the Homericall Urne of Patroclus, whatever was the solid Tegument, we finde the immediate covering to be a purple peece of silk — Sir Thomas Browne, Urne-Burial (Penguin 2005, p. 21)"
2.nounA natural covering of the body or of a bodily organ; an integument.