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tym·pan·ic mem·brane

[TA]
a thin tense membrane forming the greater part of the lateral wall of the tympanic cavity and separating it from the external acoustic meatus; it constitutes the boundary between the external and middle ears; it is a trilaminar membrane covered with skin on its external surface, mucosa in its internal surface, is covered on both surfaces with epithelium, and, in the tense part, has an intermediate layer of outer radial and inner circular collagen fibers.

drum

(drum) tympanic membrane.

drum

(drŭm)
n.
Anatomy The eardrum.

tym·pan·ic mem·brane

(tim-pan'ik mem'brān) [TA]
A thin, tense covering that forms the greater part of the lateral wall of the tympanic cavity and separates it from the external acoustic meatus; it constitutes the boundary between the external and middle ear, is covered on both surfaces with epithelium, and in the tense part has an intermediate layer of outer radial and inner circular collagen fibers.
Synonym(s): membrana tympani [TA] , drum membrane, drum, drumhead, eardrum, myringa, myrinx.
[L. membrana tympani]
References in periodicals archive ?
Elizabeth Ramsay, prosecuting, said: "He ignored several police warnings and kept beating the drum.
There are only two groups that are beating the drums of war in the Middle East - the Israeli Defense Ministry and its amen corner in the United States," he said on national TV.
Then he moved forward and started beating the drums quite well, much to the amusement of the gathering.
There will also be a range of stalls, a fair and a steel pan workshop in the park, where youngsters are invited to have a go at beating the drums.
David Cameron is beating the drums louder every day.
She wrote several historical texts including Beating the Drums for Sir John Johnson (1984).
They roam through the narrow streets and alleys of the beach refugee camp of over half a million population in Gaza city, breaking the silence by beating the drums, singing traditional Ramadan songs, call prayers, praise mighty Allah and prayers on Prophet Mohammad (PBUH).
The NCP official rejected accusations that his party was beating the drums of war with South Sudan.