Definitions for eardrumˈɪərˌdrʌm

This page provides all possible meanings and translations of the word eardrum

Random House Webster's College Dictionary

ear•drumˈɪərˌdrʌm(n.)

  1. a membrane in the ear canal between the external ear and the middle ear; tympanic membrane.

    Category: Anatomy, Zoology

Origin of eardrum:

1635–45

Princeton's WordNet

  1. eardrum, tympanum, tympanic membrane, myringa(noun)

    the membrane in the ear that vibrates to sound

Wiktionary

  1. eardrum(Noun)

    A thin membrane that separates the outer ear from the middle ear and transmits sound from the air to the malleus.

Webster Dictionary

  1. Eardrum(noun)

    the tympanum. See Illust. of Ear

Freebase

  1. Eardrum

    In human anatomy, the eardrum, or tympanic membrane, is a thin, cone-shaped membrane that separates the external ear from the middle ear in humans and other tetrapods. Its function is to transmit sound from the air to the ossicles inside the middle ear, and then to the oval window in the fluid-filled cochlea. Hence, it ultimately converts and amplifies vibration in air to vibration in fluid. The malleus bone bridges the gap between the eardrum and the other ossicles. There are two general regions of the tympanic membrane: the pars flaccida and the pars tensa. The pars flaccida consists of two layers, is relatively fragile, and is associated with eustachian tube dysfunction and cholesteatomas. The larger pars tensa region consists of three layers: skin, fibrous tissue, and mucosa. It is comparatively robust, and is the region most commonly associated with perforations. Rupture or perforation of the eardrum can lead to conductive hearing loss. Collapse or retraction of the eardrum can also cause conductive hearing loss or even cholesteatoma.


Translations for eardrum

Kernerman English Multilingual Dictionary

eardrum(noun)

the layer of tissue separating the inner from the outer ear.

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