SIGMOIDAL
sigmoid, sigmoidal
(adjective) of or relating to the sigmoid flexure in the large intestine
Source: WordNet® 3.1
Etymology
Adjective
sigmoidal (comparative more sigmoidal, superlative most sigmoidal)
sigmoid; S-shaped.
(statistics) Characterized by a sigmoid curve or function
Noun
sigmoidal (plural sigmoidals)
A sigmoidal function or curve
Anagrams
• dialogism
Source: Wiktionary
Sig"moid, Sig*moid"al, a. Etym: [Gr. sigmoïde.]
Definition: Curved in two directions, like the letter S, or the Greek s.
Sigmoid flexure (Anat.), the last curve of the colon before it
terminates in the rectum. See Illust. under Digestive.
– Sigmoid valves. (Anat.) See Semilunar valves, under Semilunar.
Source: Webster’s Unabridged Dictionary 1913 Edition