posterior triangle

noun

A triangular region that is a landmark in the neck, has its apex above at the occipital bone, and is bounded in front by the sternocleidomastoid muscle, behind by the anterior margin of the trapezius, and inferiorly by the middle third of the clavicle.

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Meanings

nounposterior triangle (plural posterior triangles)

plural posterior triangles

  1. anatomyA triangular region that is a landmark in the neck, has its apex above at the occipital bone, and is bounded in front by the sternocleidomastoid muscle, behind by the anterior margin of the trapezius, and inferiorly by the middle third of the clavicle.

Translations

Chinese Mandarin 後三角 /后三角
  • 後三角 /后三角 (hòu sānjiǎo)region of the neck
Cite this entry
APA

posterior triangle. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/posterior%20triangle

MLA

“posterior triangle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/posterior%20triangle. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “posterior triangle,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/posterior%20triangle.

Source: posterior triangle on Wiktionary, CC BY-SA 4.0.