apo·​neu·​ro·​sis | \ ˌa-pə-nu̇-ˈrō-səs How to pronounce aponeurosis (audio) , -nyu̇- \

Definition of aponeurosis

: a broad flat sheet of dense fibrous collagenous connective tissue that covers, invests, and forms the terminations and attachments of various muscles

Other Words from aponeurosis

aponeurotic \ ˌa-​pə-​nu-​ˈrä-​tik How to pronounce aponeurosis (audio) , -​nyu̇-​ \ adjective

Examples of aponeurosis in a Sentence

Recent Examples on the Web The most popular kind of face-lift is known as the SMAS, which stands for subcutaneous muscular aponeurosis system. Jessica Matlin, Harper's BAZAAR, 29 Nov. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aponeurosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of aponeurosis

1676, in the meaning defined above

History and Etymology for aponeurosis

New Latin, from Greek aponeurōsis, from aponeurousthai to pass into a tendon, from apo- + neuron sinew — more at nerve

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Time Traveler for aponeurosis

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The first known use of aponeurosis was in 1676

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Dictionary Entries Near aponeurosis

Apo, Mount



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Cite this Entry

“Aponeurosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aponeurosis. Accessed 13 Aug. 2022.

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More Definitions for aponeurosis


apo·​neu·​ro·​sis | \ ˌap-ə-n(y)u̇-ˈrō-səs How to pronounce aponeurosis (audio) \
plural aponeuroses\ -​ˌsēz How to pronounce aponeurosis (audio) \

Medical Definition of aponeurosis

: any of the broad flat sheets of dense fibrous collagenous connective tissue that cover, invest, and form the terminations and attachments of various muscles

Other Words from aponeurosis

aponeurotic \ -​ˈrät-​ik How to pronounce aponeurosis (audio) \ adjective

More from Merriam-Webster on aponeurosis

Britannica.com: Encyclopedia article about aponeurosis


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