Liberal Dictionary English Dictionary
sigma [sig-muh] ExamplesWord Origin noun
- the 18th letter of the Greek alphabet: Σ, σ, ς.
- the consonant sound represented by this letter.
Origin of sigma 1600–10; Latin Greek sígma Examples from the Web for sigma Contemporary Examples of sigma
Lohse rushes Sigma Alpha Epsilon, gets a bid, endures pledge term, and then submits to the dehumanizing rigors of Hell Night.
An Ivy League Frat Boy’s Shallow Repentance
Stefan Beck
November 24, 2014
Pledging, also known as initiation, will now be abolished by Sigma Alpha Epsilon nationally across its 240 chapters.
Deadly Frat Rituals Are Banned Thanks to Technology
Joe Concha
March 10, 2014
Historical Examples of sigma
And all of these records were summed up, integrated, into the “Sigma” curve.
Edward Elmer Smith
Sigma is thanked: but he will see that we could not now alter the size of our volumes.
Notes and Queries, Number 169, January 22, 1853
Various
Sigmoid, curved in two directions, like the letter S, or the Greek sigma.
Asa Gray
Take colour, for instance; and we shall perceive that in the Dromius sigma, Rossi, it is sensibly affected.
Thomas Vernon Wollaston
There he began to find himself, and became one of the popular men in his class and in the Sigma Phi Fraternity.
Warren C. Herrick
British Dictionary definitions for sigma sigma noun
- the 18th letter in the Greek alphabet (Σ, σ, or, when final, ς), a consonant, transliterated as S
- maths the symbol Σ, indicating summation of the numbers or quantities indicated
Word Origin for sigma Greek, of Semitic origin; related to Hebrew samekh Word Origin and History for sigma
18th letter of the Greek alphabet, corresponding to Latin S, a metathesis of Hebrew samekh. In uncial writing, shaped like an S or a C.
sigma in Medicine sigma [sĭg′mə] n.
- The 18th letter of the Greek alphabet.
sigma in Science sigma [sĭg′mə]
- A sigma baryon.