nuchal line

noun

Medical Definition of nuchal line

: any of several ridges on the outside of the skull: as
a : one on each side that extends laterally in a curve from the external occipital protuberance to the mastoid process of the temporal bone

called also superior nuchal line

c : one on each side that extends laterally from the middle of the external occipital crest below and roughly parallel to the superior nuchal line

called also inferior nuchal line

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Cite this Entry

“Nuchal line.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/nuchal%20line. Accessed 21 May. 2022.

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