sigmoid

adjective

sig·moid | \ ˈsig-ˌmȯid

variants: or less commonly sigmoidal \ sig-ˈmȯi-dᵊl

Definition of sigmoid

1a : curved like the letter C

b : curved in two directions like the letter S

2 : of, relating to, or being the sigmoid colon

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Did You Know?

The shape sense of sigmoid is most often used in scientific contexts to describe an s-shaped curve on a graph. Usually, though, sigmoid is used in contexts relating to the sigmoid colon-the contracted and crooked part of the colon immediately above the rectum. Sigmoid comes from sigma, the name of the 18th letter of the Greek alphabet. At one time sigma had a common form that was shaped like the Roman letter C (hence sense 1a), but sigma is equivalent to the English letter S (hence sense 1b).

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To do this, the computer breaks down the mystery function into a number of layers of unknown functions called sigmoid functions. — Quanta Magazine, "Big Data’s Mathematical Mysteries," 3 Dec. 2015

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More Definitions for sigmoid

sigmoid

adjective

sig·moid | \ ˈsig-ˌmȯid

Medical Definition of sigmoid

(Entry 1 of 2)

1a : curved like the letter C

b : curved in two directions like the letter S

2 : of, relating to, or being the sigmoid colon of the intestine sigmoid lesions

sigmoid

noun

Medical Definition of sigmoid (Entry 2 of 2)

: sigmoid colon

sigmoid

Definition of sigmoid

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First Known Use of sigmoid

History and Etymology for sigmoid

Medical Definition of sigmoid

sigmoid

Definition of sigmoid

Other Words from sigmoid

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Examples of sigmoid in a Sentence

First Known Use of sigmoid

History and Etymology for sigmoid

Medical Definition of sigmoid

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