sigmoid sinus

noun

Medical Definition of sigmoid sinus

: a sinus on each side of the brain that is a continuation of the transverse sinus on the same side, follows an S-shaped course to the jugular foramen, and empties into the internal jugular vein

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Dictionary Entries Near sigmoid sinus

sigmoidostomy

sigmoid sinus

sigmoid vein

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Cite this Entry

“Sigmoid sinus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sigmoid%20sinus. Accessed 1 Dec. 2021.

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