ˈtegmən noun
( plural tegmi·na -mənə)
Etymology: New Latin, from Latin tegmen, tegumen, covering, cover, from tegere to cover
: integument , covering : as
a. : endopleura
b.
(1) : one of the elytra of a beetle
(2) : one of the thickened forewings of various orthopterans
c. or tegmen tympani : a thin plate of bone that covers the middle ear and separates it from the cranial cavity