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meatus

American

[mee-ey-tuhs] / miˈeɪ təs /

noun

Anatomy.

plural

meatuses, meatus

an opening or foramen, especially in a bone or bony structure, as the opening of the ear or nose.

meatus British

/ mɪˈeɪtəs /

noun

anatomy a natural opening or channel, such as the canal leading from the outer ear to the eardrum

"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

Other Word Forms

meatal

adjective

Etymology

Origin of meatus

1655–65; < Latin meātus course, channel, equivalent to meā ( re ) to go, extend, have a course + -tus suffix of v. action

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The internal auditory meatus is located due south of the temporal bone.

From Slate • Oct. 13, 2021

Specifically, I’d like to acquaint you with the internal auditory meatus.

From Slate • Oct. 13, 2021

The final opening of the urethra is called the meatus.

From Salon • Jul. 15, 2018

Openings here include the large foramen magnum, plus the internal acoustic meatus, jugular foramina, and hypoglossal canals.

From Textbooks • Jun. 19, 2013

The function of that part of the external ear which projects from the head is to collect sounds and reflect them into the meatus.

From A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) by Cutter, Calvin

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023