tegmen

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tegmen

 [teg´men] (L.)
a covering structure or roof.
tegmen tym´pani the thin layer of bone that forms the roof of the tympanic cavity, separating it from the cranial cavity.

teg·men

, gen.

teg·mi·nis

, pl.

teg·mi·na

(teg'men, -mi-nis, -mi-nă),
A structure that covers or roofs over a part.
[L. a covering, fr. tego, to cover]

tegmen

/teg·men/ (teg´men) pl. teg´mina   [L.] a covering structure or roof.
tegmen tym´pani  the thin layer of bone that forms the roof of the tympanic cavity, separating it from the cranial cavity.

tegmen

(tĕg′mən)
n. pl. teg·mina (-mə-nə)
A covering or integument, especially:
a. The thin plate of bone that covers the middle ear.
b. The tough leathery forewing of certain insects.
c. The inner layer of a seed coat.

tegmen

[teg′mən]
a covering, such as the bone that covers the tympanic cavity.

teg·men

, pl. tegmina (teg'men, -mi-nă) [TA]
A structure that covers or roofs over a part.
[L. a covering, fr. tego, to cover]

tegmen

  1. the inner seed coat or integument.
  2. the hardened forewing of member of the DICTYOPTERA and ORTHOPTERA.

tegmen

pl. tegmina [L.] a covering structure or roof.

tegmen tympani
1. the thin layer of bone separating the tympanic antrum from the cranial cavity.
2. the roof of the tympanic cavity, related to part of the petrous portion of the temporal bone.
References in periodicals archive ?
Coloration greenish yellow with a pair of hardly lighter (yellowish) stripes along lateral edges of disc, light brown area between them, yellowish proximal half of tegminal Sc, brownish both its distal half and stridulatory vein of upper tegmen, brown both plectrum of lower tegmen and majority of longitudinal veins in hind wings, semitransparent rest of wing venation, and transparent membranes of all wings (hind legs missing).
In the present paper the strange tegminal venation will be discussed and the relation of Eulophophyllum to other Phaneropterinae genera considered.
The genus does not seem to be closely related to any other Phaneropterinae, although one might speculate that its peculiar tegminal venation may have evolved from an ancestor which had similar tegmina to Dysmorpha Brunner, 1878 or Leptoderes Serville, 1838.
Tegminal pads slender, not surpassing second abdominal tergite, length about three times greater than width, gradually expanding to their rounded apices; venation white, prominent, longitudinal, fairly regular.
Tegminal pads not surpassing the second abdominal tergite.
Tegmen dark brown, with a longitudinal band in which the reticulum veins are white or yellow; this gives the superficial impression of a pale stripe marked with brown spots of various sizes (corresponding to the brown tegminal mebrane showing between the reticulum).
4) Tegminal size, shape and occasionally notable vein pattern differences.
However, in these groups differences in wing length are generally expressed as a function of the hind wing only, and tegminal length is essentially the same for both long-winged and short-winged forms (Masaki & Schimizu 1995).
Tegminal vibrations were examined in the frequency domain in response to acoustic stimulation with periodic (chirp) signals in the range 1-45 kHz.
Within each chirp or trill, the pulses, which correspond to individual tegminal closings, occur in groups of three, except that the first group usually has two pulses rather than three.
In 1989 near Baeza on the eastern slope of the Andes in the Quijos Valley of Ecuador (Provincia del Napo) Andrew Mason and Glenn Morris recorded songs and collected specimens of an unknown flightless katydid with an unusual produced pronotum as part of its tegminal sound generator.
Tegminal length was measured from above, from the articulation of one of the forewings to its tip as seen from above, disregarding the curvature.