Meanings
nounsigmoid sinus (plural sigmoid sinuses)
plural sigmoid sinuses
- anatomyA 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.
Synonyms & antonyms
nounan S-shaped dural sinus on the temporal and occipital bones
Similar
sinus sigmoideus
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Translations
Chinese Mandarin 乙狀竇 /乙状窦
- 乙狀竇 /乙状窦 (yǐzhuàng dòu)dural venous sinus
Cite this entry
APA
sigmoid sinus. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sigmoid%20sinus
MLA
“sigmoid sinus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sigmoid%20sinus. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “sigmoid sinus,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sigmoid%20sinus.
Source: sigmoid sinus on Wiktionary, CC BY-SA 4.0.