WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / sigmoid sinus sigmoid sinus noun 13 letters Scrabble 16 WWF 20 Definitions noun an S-shaped dural sinus on the temporal and occipital bones sinus sigmoideus Look “sigmoid sinus” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →