pilus

A hair or hairlike structure, especially on the surface of a cell or microorganism.

In botany, one of the fine slender bodies, like hair, covering some plants.

In zoology, a hair or hair-like body, especially a hair in any way distinguished from those which collectively cover the body.

A hair.

A hairlike appendage found on the cell surface of many bacteria.

hairlike structure especially on the surface of a cell or microorganism

any of the cylindrical filaments characteristically growing from the epidermis of a mammal