单词 | tegmen |
释义 | tegmen/ˈtɛɡmɛn![]() noun (plural tegmina) 1 Biology A covering structure or roof of an organ, in particular:These species are notable for the plesiomorphic retention of venation (albeit already quite reduced) in their tegmina, segmented cerci, and pentamerous tarsi....
1.1 Entomology A sclerotized forewing serving to cover the hindwing in grasshoppers and related insects.Collecting sites were chosen on the basis of previous collecting experience, and crickets were identified on the basis of differences in body length, hind wing length, ovipositor length, and tegmina color....
1.2 Botany The delicate inner protective layer of a seed.In the recurved margins of the seed, the tegmen was wedge-shaped....
1.3 (also tegmen tympani) Anatomy A plate of thin bone forming the roof of the middle ear, a part of the temporal bone.Another ligament attaches to the body of the incus and binds it to the roof of the middle ear (tegmen tympani)....
OriginEarly 19th century: from Latin, 'covering', from tegere 'to cover'. |
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