Hypertext Webster Gateway: "eardrum"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Eardrum \Ear"drum`\, n. (Anat.)
The tympanum. See Illust. of {Ear}.
From WordNet (r) 1.7 (wn)
eardrum
n : the membrane in the ear that vibrates to sound [syn: {tympanum},
{tympanic membrane}, {myringa}]
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