Where does “sigmoid” come from?

Sigmoid derives from Ancient Greek σιγμοειδής, formed from Ancient Greek -ειδής meaning "shaped like," which traces to Phoenician 𐤔.

sigmoid (English): Curved in two directions, like the letter "S", or...

Definitions

  1. Curved in two directions, like the letter "S", or...

Ancestry of “sigmoid”, step by step

sigmoid traces back through two separate lines of ancestry.

via French sigmoïde

StepLanguageWordMeaning
1Frenchsigmoïdesigmoid, sigmoidal

via Ancient Greek σῑγμοειδής

StepLanguageWordMeaning
1Ancient Greekσῑγμοειδήςshaped like the lunate sigma (which resembles the English C); semicircular, crescent-shaped

Words derived from “sigmoid

Every word from French sigmoïde