Как по Английски будет setas

noun

A stiff structure resembling a hair or a bristle, especially in an invertebrate.

Примеры использования:

Each feeding leg, split into two branches, carries stiff bristles and feathery setae.

noun

The spore-bearing fruiting body of a fungus, typically in the form of a rounded cap on a stalk, especially one that is believed to be inedible or poisonous.

Примеры использования:

The fly agaric or fairy toadstool grows here too, especially under birch along with other woodland …