integument

About 0.34 uses per million words.

Meaning

1. noun A shell or other outer protective layer.
2. noun An outer protective covering such as the feathers or skin of an animal, a rind or shell.
3. noun The outer layer of an ovule, which develops into the seed coat.

Similar words

aril rind coat outershell shell tegument outer garment armor scarfskin skin

Often followed by

of is and in which or to over covering

Word family

integumental integuments