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1A covering structure or roof of an organ, in particular:
- ‘A specimen of B. rhombiferus with preserved tegmen plates that may have been part of the anal sac is also known.’
- ‘Barycrinus species lack a notable anal structure and the tegmen and associated features are very rarely preserved in this species.’
- ‘The aboral surface of a complete, smaller specimen is preserved on the holotype, but the tegmen is buried in matrix.’
- ‘These species are notable for the plesiomorphic retention of venation (albeit already quite reduced) in their tegmina, segmented cerci, and pentamerous tarsi.’
- 1.1 A sclerotized forewing serving to cover the hindwing in grasshoppers and related insects.
- ‘Predators mistaking the pinnule tips for the tegmen could take bites out of the distal parts of the pinnules.’
- ‘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.’
- ‘Male grasshoppers court females by a producing a signal made by alternate stridulation, which is rubbing one hind leg against the tegmen, which produces sound.’
- 1.2Botany The delicate inner protective layer of a seed.
- ‘The symptomless infected seeds carry thin and hyaline mycelium in the tegmen, endosperm, and space between the endosperm and embryo.’
- ‘By contrast, in treated dormant seed, the tegmen appears intact and not expanded.’
- ‘In the recurved margins of the seed, the tegmen was wedge-shaped.’
- 1.3Anatomy A plate of thin bone forming the roof of the middle ear, a part of the temporal bone.
- ‘The condition is usually related to tegmen erosion due to aberrant arachnoid granulations.’
- ‘Middle cranial fossa exploration revealed two punched out defects in the dura, with generalised dural thinning, overlying the tegmen and mastoid dural plate, which were eroded.’
- ‘Another ligament attaches to the body of the incus and binds it to the roof of the middle ear (tegmen tympani).’
- ‘A CT scan revealed a destructive process involving the right middle ear cavity that extended to involve the mastoid, attic, tegmen and bony component of the external auditory canal.’
- ‘At the blind end of this chamber, the bone forms the tegmen tympani.’
Early 19th century: from Latin, covering, from tegere to cover.
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