Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A covering or integument, such as the tough leathery forewing of certain insects or the inner coat of a seed. Also called tegmentum.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A covering or integument

from the GNU version of the Collaborative International Dictionary of English

  • n. A tegument or covering.
  • n. The inner layer of the coating of a seed, usually thin and delicate; the endopleura.
  • n. One of the elytra of an insect, especially of certain Orthoptera.
  • n. Same as Tectrices.

from The Century Dictionary and Cyclopedia

  • n. In crinoids, same as disk, 5
  • n. A covering; a covering or protecting part or organ; a tectorium; an integument; a tegmentum.
  • n. 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.
  • n. plural In ornithology, the tectrices or coverts of the wing or tail. See tectrices.
  • n. In anatomy, the roof of the tympanic cavity of the ear, especially in early stages of its formation: also distinguished as tegmen tympani.
  • n. 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.

Etymologies

Latin tegimen, tegmen, covering, from tegere, to cover.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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