the eleventh letter of the Greek alphabet (Λ, λ), transliterated as ‘l’ 希腊字母表中第十一个字母(译写为l) ■(Lambda)[followed by Latin genitive](Astronomy)the eleventh star in a constellation (天文)λ星(星座中第十一颗星) Lambda Tauri. 金牛座λ星。 ■(Biology)a type of bacteriophage virus used in genetic research (生)λ噬菌体 [as modifier]lambda phage. λ噬菌体。 ■(Anatomy)the point at the back of the skull where the parietal bones and the occipital bone meet (剖)人字缝尖,后囟点 ■[as modifier](Biochemistry)denoting one of the two types of light polypeptide chain present in all immunoglobulin molecules (the other being kappa) (生化)λ链