noun Anatomy, Zoology.
Examples from the Web for eardrum
He also failed a drug test and allegedly hit a bouncer so hard he punctured his eardrum.Sham Classes and Crime Coverups Are the NCAA Normal|Robert Silverman|June 7, 2014|DAILY BEAST
So do the adjacent molecules of air and so does the eardrum of a listener.
Monsieur Le Grand drummed till my own eardrum was nearly cracked.
When sounds strike the eardrum it vibrates and excites the nerve of hearing.
Way back inside the ear is a little curtain, or eardrum, made of a thin membrane.
When the molecules of air next your ear receive the push they in turn push against your eardrum.