/ˈgamə/
Noun, pl. gammas
1. The name of the third letter of the Greek alphabet (Γ, γ), preceded by beta (Β, β) and followed by delta, (Δ, δ). (wikipedia.org)
2. Third letter in the greek alphabet, variable used for a number of things in physics, in plasma physics gamma is often used as the variable for growth rates of instabilities. (biology-online.org)
(Mathematics)
1. The Gamma function, symbolized by Γ. (wikipedia.org)
2. A constant approximately equal to 0.55721566, symbolized by γ. (wikipedia.org)
(Physics)
1. A unit of magnetic field equal to 1 nT. (wikipedia.org)
Word origin: From Greek gamma, from Phoenician gimel, literally “camel”; so called for a fancied resemblance of its shape to some part of a camel. Gamma rays (1903) originally were thought to be a third type of radiation, now known to be identical with very short X-rays. (www.etymonline.com/)