/inˈtegyəmənt/
Noun, pl. integuments
1. A general term in biology that refers most commonly to the natural covering of an organism or an organ, such as its skin, husk, shell, or rind (wikipedia.org); The outer protective covering of (the body of) an organism, such as cuticle, fur, shell, rind, seed coat, etc.; the skin including the glands and appendages such as hair, nails, feathers, scales, horns, hooves and claws (biology-online.org).
2. (Biology) An outer protective covering such as the feathers or skin of an animal, a rind or shell. (wiktionary.org)
3. (Botany) The outer layer of an ovule, which develops into the seed coat (wiktionary.org); The outer cell layers of the ovule enclosing the nucellus. (biology-online.org)
Word origin: From Latin integumentum “a covering,” from integere “to cover over,” from in- “in, upon” + tegere “to cover”