sigma
[ sig-muh ]
/ ˈsɪg mə /
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
Words nearby sigma
sigint,
sigismund,
sigismund ii,
sigla,
siglos,
sigma,
sigma baryon,
sigma factor,
sigma particle,
sigmate,
sigmatism
Example sentences from the Web for sigma
British Dictionary definitions for sigma
sigma
/ (ˈsɪɡmə) /
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
Medical definitions for sigma
sigma
[ sĭg′mə ]
n.
The 18th letter of the Greek alphabet.
Scientific definitions for sigma
sigma
[ sĭg′mə ]
A sigma baryon.