sigmoid

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English[edit]

Etymology[edit]

Borrowing from Ancient Greek σῑγμοειδής (sīgmoeidḗs, of the shape of sigma), from σῖγμᾰ (sîgma, sigma) +‎ -ο- (-o-) +‎ -ειδής (-eidḗs, -oid, -like); Equivalent to sigma +‎ -oid. Compare with French sigmoïde.

Pronunciation[edit]

  • IPA(key): /ˈsɪɡ.mɔɪd/
    • (file)
  • Rhymes: -ɪɡmɔɪd

Adjective[edit]

sigmoid (not comparable)

  1. (archaic) Semi-circular, like the uncial or lunar sigma (similar to English C).
  2. Curved in two directions, like the letter "S", or the Greek ς (sigma); having a serpentine shape.
    Synonym: (informal) S-shaped
    1. (mathematics) Exhibiting logistic growth; having a graph that accelerates until it reaches a carrying capacity.
  3. (anatomy) Relating to the sigmoid colon.
    Synonym: sigmoidal

Derived terms[edit]

Translations[edit]

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 Wiktionary:Entry layout § Translations.

Noun[edit]

sigmoid (plural sigmoids)

  1. (anatomy) Ellipsis of sigmoid colon..
  2. (mathematics) Ellipsis of sigmoid function..[1]

Derived terms[edit]

References[edit]

  1. ^ Eric W. Weisstein (July 19, 2021), “Sigmoid Function”, in Mathworld[1]

Romanian[edit]

Etymology[edit]

From French sigmoïde

Adjective[edit]

sigmoid m or n (feminine singular sigmoidă, masculine plural sigmoizi, feminine and neuter plural sigmoide)

  1. sigmoid

Declension[edit]