Medical Dictionary


noun \ˈi(ə)r\

Medical Definition of EAR

:  the characteristic vertebrate organ of hearing and equilibrium consisting in the typical mammal of a sound-collecting outer ear separated by the tympanic membrane from a sound-transmitting middle ear that in turn is separated from a sensory inner ear by membranous fenestrae
a :  the external ear of humans and most mammals b :  a human earlobe <had her ears pierced>
a :  the sense or act of hearing b :  acuity of hearing

Illustration of EAR

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears