seta
/ˈsiːtə/
noun
- A stiff, hair-like structure on a living thing, such as on a plant, insect, or worm.
- Each seta on the plant stem is actually a modified hair that protects against herbivores.
- The caterpillar's body is covered in tiny setae that help it sense its surroundings.
- Under the microscope, the setae on the earthworm's segments are clearly visible.