aponeurosis

[ ap-uh-noo-roh-sis, -nyoo- ]

/ ˌæp ə nʊˈroʊ sɪs, -nyʊ- /

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noun, plural ap·o·neu·ro·ses

[ap-uh-noo-roh-seez, -nyoo-]. /ˌæp ə nʊˈroʊ siz, -nyʊ-/. Anatomy.

a whitish, fibrous membrane that connects a muscle to a bone or fascia.

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Origin of aponeurosis

1670–80; <Greek aponeúrōsis the part of a muscle becoming a tendon, equivalent to aponeurō-, variant stem of aponeuroûn to change to tendon (see apo-, neuron) + -sis-sis

OTHER WORDS FROM aponeurosis

ap·o·neu·rot·ic

[ap-uh-noo-rot-ik, -nyoo-], /ˌæp ə nʊˈrɒt ɪk, -nyʊ-/, adjective

Words nearby aponeurosis

apomict, apomixis, apomorphine, aponeurectomy, aponeurorrhaphy, aponeurosis, aponeurositis, aponeurotic fibroma, aponeurotomy, apopemptic, apophasis

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use aponeurosis in a sentence

The aponeurosis crosses the medial side of the insertion of M. pterygoideus dorsalis medialis.
Jaw Musculature of the Mourning and White-winged Doves|Robert L. Merz
Part of the aponeurosis becomes tendonlike in the middle of M. pterygoideus ventralis and separates its two divisions.
Jaw Musculature of the Mourning and White-winged Doves|Robert L. Merz
The insertion is tendinous on the dorsal surface of the lower mandible in common with the dorsal aponeurosis of pars profundus.
Jaw Musculature of the Mourning and White-winged Doves|Robert L. Merz
The lateral tendon of M. pseudotemporalis superficialis converges with the aponeurosis.
Jaw Musculature of the Mourning and White-winged Doves|Robert L. Merz

The tendon of origin is actually one with the ventral aponeurosis of pars profundus, which is situated in a horizontal plane.
Jaw Musculature of the Mourning and White-winged Doves|Robert L. Merz

British Dictionary definitions for aponeurosis

aponeurosis

/ (ˌæpənjʊəˈrəʊsɪs) /

noun plural -ses (-siːz)

anatomy a white fibrous sheet of tissue by which certain muscles are attached to bones

Derived forms of aponeurosis

aponeurotic (ˌæpənjʊəˈrɒtɪk), adjective

Word Origin for aponeurosis

C17: via New Latin from Greek, from aponeurousthai to change into a tendon, from neuron tendon

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

Medical definitions for aponeurosis

aponeurosis

[ ăp′ə-nu-rō′sĭs ]

A sheetlike fibrous membrane resembling a flattened tendon that serves as a fascia to bind muscles together or to connect muscle to bone.

Other words from aponeurosis

ap′o•neu•rot′ic (-rŏt′ĭk) adj.