Gamma
letter in the Greek alphabet
Gamma (uppercase/lowercase Γ γ), is the third letter of the Greek alphabet, used to represent the "g" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 3. Letters that came from it include the Roman C and Cyrillic Г.
The lowercase Gamma ("γ") is used in wave motion physics to represent the ratio of specific heat.
