EnglishEdit
EtymologyEdit
From Ancient Greek σιγμοειδής (sigmoeidḗs), from σίγμα (sígma) or σῖγμα (sîgma, “sigma”) + εἶδος (eîdos, “form, likeness”). Compare with French sigmoïde.
PronunciationEdit
AdjectiveEdit
sigmoid (not comparable)
- (geometry) Curved in two directions, like the letter "S", or the Greek ς (sigma).
- Having a serpentine shape; resembling S or ʃ
- (mathematics) Exhibiting logistic growth; having a graph that accelerates until it reaches a carrying capacity
- (geometry, archaic) Semi-circular, like the lunar sigma (similar to English C).
- (anatomy) Relating to the sigmoid flexure of the large intestine.
SynonymsEdit
Derived termsEdit
- sigmoid artery
- sigmoid colon
- sigmoid flexure
- sigmoid fossa
- sigmoid groove
- sigmoid sinus
- sigmoid valve
- sigmoid function
- sigmoidoscope
TranslationsEdit
in geometry: curved in two directions
in geometry: semi-circular
in anatomy: relating to the sigmoid flexure of the large intestine
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.
NounEdit
sigmoid (plural sigmoids)
- (mathematics) A function having a graph whose shape is sigmoid. See Wikipedia and Mathworld[1].
TranslationsEdit
in mathematics: function having a graph whose shape is sigmoid