Sigmoid
Sigmoid adjective - Curved in two directions (like the letter S).
Show all Definitions
Synonyms for Sigmoid
Mutual synonyms
Cite this Source
Sinuous and Sigmoid. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/sigmoid/sinuous
Sigmoid & Sinuous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/sigmoid/sinuous>.
Sinuous or Sigmoid. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/sigmoid/sinuous.
Google Ngram Viewer shows how "sigmoid" and "sinuous" have occurred on timeline