sigmoidal

sig·moid

S s

Definitions of sigmoidal word

adjective sigmoidal shaped like the letter C. 1
adjective sigmoidal shaped like the letter S. 1
adjective sigmoidal of, relating to, or situated near the sigmoid flexure of the large intestine. 1

before 1660

One of the 46% oldest English words

First recorded in 1660-70, sigmoid is from the Greek word sigmoeidḗs shaped like a sigma. See sigma, -oid

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 81% of English native speakers know the meaning and use the word.

This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

This diagram is provided by Google Ngram Viewer