kappa
/ˈkæpə/noun
1- the tenth letter of the Greek alphabet (K, κ), transliterated as 'k'希腊字母表中第十个字母（写作k）。
1.1
- (Kappa)followed by Latin genitive Astronomy the tenth star in a constellation【天文】κ星（星座中第十颗星）：
Kappa Orionis.
猎户座κ星。
1.2
- as modifier Biochemistry denoting one of the two types of light polypeptide chain present in all immunoglobulin molecules (the other being lambda)【生化】κ链。
词源
Greek.