Gamma (letter)

Gamma (uppercase Γ, lowercase γ; Greek: Γάμμα Gámma) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop /ɡ/. In Modern Greek, this letter represents either a voiced velar fricative or a voiced palatal fricative.

In the International Phonetic Alphabet and other modern Latin-alphabet based phonetic notations, it represents the voiced velar fricative.

The Greek letter Gamma Γ was derived from the Phoenician letter for the /g/ phoneme (...
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