sigma
🇺🇸
/ˈsɪɡmə/
🇬🇧
/ˈsɪɡmə/
noun
R
The 18th letter in the Greek alphabet, which looks like 'S' and 'C' combined.
In mathematics, sigma is used as a symbol to represent the sum of a series of numbers.
translation
The 18th letter in the Greek alphabet, which looks like 'S' and 'C' combined.
Word Forms
Plural
sigmas