gamma
/ˈgæmə/noun
1- the third letter of the Greek alphabet (Γ, γ), transliterated as 'g'希腊字母表中第三个字母（译写为g）。
1.1
- The combinations γγ,γκ and γχ are usually transliterated as 'ng', 'nk', and 'nkh' or 'nch'.γγ, γκ和 γχ这三种组合通常译写为ng,nk和nkh或nch.
1.2
- as modifier denoting the third in a series of items, categories, etc.丙, γ项, γ类（一系列项目、分类中的第三位）。
1.3
- Brit. a third-class mark given for an essay, examination paper, or other piece of work〈英〉（论文、考试成绩等的）γ等, 丙等。
1.4
Gamma
followed by Latin genitive Astronomy the third (usually third-brightest) star in a constellation【天文】γ星（星座中第三颗星, 亮度通常也居第三位）：Gamma Orionis.
猎户座γ星。
1.5
- as modifier relating to gamma rays.γ射线：
gamma detector.
γ射线探测器。
1.6
- Physics （复同单）a unit of magnetic field strength equal to 10-5 oersted【物理】伽马（磁场强度单位）。
词源
via Latin from Greek.