Sigma (Noun)
Meaning
The 18th letter of the Greek alphabet.
Classification
Nouns denoting communicative processes and contents.
Examples
- The Greek letter sigma is often used in mathematics to represent summation.
- In the Greek alphabet, sigma is the 18th letter and has a unique symbol.
- The uppercase and lowercase forms of the letter sigma are Σ and σ, respectively.
- The letter sigma is commonly used in physics to represent surface tension.
- In typography, the letter sigma has a distinctive shape that is easily recognizable.