integument

Definitions

General Science

  • noun an outer protective layer of an organism, e.g. a shell, husk or skin

Food

  • The barrier around natural food items such as egg shell and vegetable or fruit peel, which provides a barrier to microbial invasion of the food

Medical

  • noun a covering layer, e.g. the skin
http://www.dictionarycentral.com/definition/integument.html