tympanum


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tympanum

 [tim´pah-num]

tympanum

also

timpanum

(tĭm′pə-nəm)
n. pl. tympa·na (-nə) or tympa·nums
1.
a. Anatomy See middle ear.
b. See eardrum.
2. Zoology A membranous external auditory structure, as in certain insects.
3. The diaphragm of a telephone.

tympanum

1. The ear drum and the middle ear cavity.
2. the middle ear and its contents.

tympanum

see TYMPANIC MEMBRANE.
References in periodicals archive ?
tympanum being struck is sound itself, is all sound.
Tips of tegmina reach to posterior margin of tympanum or to midpoint of abdominal segment 2; black varnished regions common on tegmina in front of R1/Sc veins and in R /M areas near tip.
Head broad, 1.1 wider than long, flat; nostrils protuberant, elliptical, angled; loreal region concave; rostral keel absent; snout long, in dorsal view presenting a narrower, short, round elevation, rounded in profile; eyes large, their diameter 40% of head length, round, prominent; tympanum small, its diameter 35% of eye diameter, distinct, slightly higher than wide; tympanic annulus prominent posteriorly; supratympanic fold heavy, extending from the posterior border of eye to above the arm insertion, wider posteriorly than anteriorly, covering upper part of tympanum.
tympanum, Grass Skink Lampropholis guichenoti, Tussock Skink Pseudemoia pagenstecherii, Lowland Copperhead Austrelaps superbus, N.
Nanorana vicina shares characters with its sub- Himalayan brook-water congeners: Allopaa barmoachensis (Khan and Tasnim, 1989) and Allopaa hazarensis (Dubois and Khan, 1979): has longer hind limbs, indistinct tympanum, prominent post-ocular skin fold to the angle of jaws, wider head, naris nearer to the eye than to snout tip, internasal space narrower than width of the upper eyelid.
10th century tympanum above door of St Padarn's >Church, Llanbadarn Fawr, Powys
The heaviest single exhibit is the tympanum from above the door of the Birmingham Dispensary on Union Street.
For the study, the scientists captured juvenile field crickets that had not yet developed a tympanum, the equivalent to an ear, which grows on the cricket's front legs.
15) or the tympanum carved above many a cathedral door that depicts Christ in judgment (for a later, more familiar version, think of Michelangelo's "Last Judgment" in the Sistine Chapel).
(While I feel this draught of cold air from their words that freezes me, binds me and torments me in sleep.) On the limits of the Arctic Circle a couple were weeping in their room beyond a transparent wall, weeping, luminous, tender as if it were a tympanum membrane.
CT virtual endoscopy of the posterior tympanum. Radiology 1999;213(Suppl):445.