tegmen

A covering or integument, especially.

The thin plate of bone that covers the middle ear.

The tough leathery forewing of certain insects.

The inner layer of a seed coat.

In crinoids, same as disk, 5

A covering; a covering or protecting part or organ; a tectorium; an integument; a tegmentum.

In botany, the endopleura, or inner coat, of the seed. It is soft and delicate, and conforms to the shape of the nucleus. See seed, 1.

plural In ornithology, the tectrices or coverts of the wing or tail. See tectrices.

In anatomy, the roof of the tympanic cavity of the ear, especially in early stages of its formation: also distinguished as tegmen tympani.

The covering of the posterior wing of some insects; especially, the fore wing of any orthopterous insect, corresponding to the elytrum of a beetle or the hemielytrum of a bug.