also: ガンマー
noun
gamma
The third letter of the Greek alphabet (Γ, γ). Used in mathematics, physics, and other sciences. Also used in loanwords such as ガンマ線 (gamma rays).
ガンマ線は非常に高いエネルギーを持つ電磁波です。
Gamma rays are electromagnetic waves with very high energy.
数学で、Γはガンマ関数を表す記号として使われます。
In mathematics, Γ is used as a symbol for the gamma function.
From English 'gamma', ultimately from Ancient Greek γάμμα (gámma).