See Also: Tympanum(medicine)
tympanum(dictionary)
tympanum(dictionary)
cord of tympanum(medicine)
membrane of tympanum(medicine)
pyramid of tympanum(medicine)
roof of tympanum(medicine)

tympanum (iou)



tympanum noun. . E16.
[Latin from Greek tumpanon drum, from nasalized var. of base of tuptein strike.]
Medicine. = TYMPANITES. rare. Only in E16.
Anatomy & Zoology. The tympanic membrane or eardrum; (the cavity of) the middle ear. Also, a membrane in any animal which is thought to form part of a hearing organ. E17.
b. Ornithology. Either of the two inflatable air-sacs at the sides of the neck in certain birds, such as grouse. Also, a bony labyrinth at the base of the trachea in certain diving ducks, having resonant membranes in its walls. rare. L19.
Architecture.
a. The die or dado of a pedestal. M17.
b. A vertical recessed area within a pediment; a similar area over a door between the lintel and the arch; a carving on this. L17.
A drum, esp. a hand drum of ancient Greece and Rome. Also, a drumhead. arch. L17.
A kind of wheel (originally drum-shaped) with curved radial partitions, used for raising water from a stream. L19.