flagellum

名词 flagellum:

1. a whip used to inflict punishment (often used for pedantic humor)
   同义词：scourge
2. a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)

fla.gel.lum

n.（名词）
【复数】 fla.gel.la[-jμl.…]
Biology A long, threadlike appendage, especially a whiplike extension of certain cells or unicellular organisms that functions as an organ of locomotion.
【生物学】 鞭毛，鞭状体：一种作为可移动器官的长的线状附属部分，尤指某种细胞或单细胞生物的鞭状伸展部分
A whip.
鞭子

来源：
Latin [diminutive of] flagrum [whip]
拉丁语 [] flagrum的小后缀 [鞭子]