pilus

• 指毛发状结构，尤指细胞或微生物表面的细丝状突起，也指哺乳动物表皮长出的圆柱形丝状结构。

A noun referring to a hairlike structure, especially on the surface of a cell or microorganism, or any of the cylindrical filaments growing from the epidermis of a mammal.

不规则复数

1. Hair on mammalsC1formalscientific

   A fine, thread-like structure that grows from the skin of mammals, forming fur or hair.

   毛

   • The pilus of a mammal provides insulation and protection.
   • Each pilus grows from a follicle in the skin.
   • The density of pili varies greatly among different species.

   同义词hair

2. Bacterial appendageC1formalscientific

   A hair-like appendage found on the surface of many bacteria, used for attachment or genetic exchange.

   菌毛

   • The bacterium uses its pilus to attach to host cells.
   • Conjugation is facilitated by a specialized pilus.
   • Scientists study the pilus to understand bacterial infections.

   同义词fimbria