Dictionary.com
definitions
  • synonyms

eardrum

[eer-druhm]
See more synonyms for eardrum on Thesaurus.com
noun Anatomy, Zoology.
  1. a membrane in the ear canal between the external ear and the middle ear; tympanic membrane.
Show More

Origin of eardrum

First recorded in 1635–45; ear1 + drum1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for eardrum

Contemporary Examples

Historical Examples


British Dictionary definitions for eardrum

eardrum

noun
  1. the nontechnical name for tympanic membrane
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for eardrum

n.

1640s, from ear (n.1) + drum (n.).

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

eardrum in Medicine

eardrum

(îrdrŭm′)
n.
  1. The thin, semitransparent, oval-shaped membrane that separates the middle ear from the external ear.drum drumhead drum membrane myringa myrinx tympanic membrane tympanum
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

eardrum in Science

eardrum

[îrdrŭm′]
  1. The thin, oval-shaped membrane that separates the middle ear from the outer ear. It vibrates in response to sound waves, which are then transmitted to the ossicles of the middle ear. Also called tympanic membrane
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

eardrum in Culture

eardrum

The membrane that divides the outer ear from the middle ear. The vibrations of this membrane in response to sound waves lead to the sensation of hearing. Also called the tympanic membrane.

Show More
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.