exuviae

詳細解釋：

ex.u.vi.ae

pl.n.（複數名詞）
The cast-off skins or coverings of various organisms, such as the shells of crabs or the external coverings of the larvae and nymphs of insects.
蛻下之皮：各種生物的外皮或脫落的皮，如蟹殼或昆蟲幼蟲或蛹的外殼

來源：
Latin
拉丁語
from exuere [to take off] * see eu-
源自 exuere [脫掉] *參見 eu-

【引伸】
exu.vial