noun
pill bug; woodlouse; roly-poly
Common name for terrestrial isopods that roll into a ball when threatened. In everyday Japanese, ダンゴムシ is the standard term.
庭の石の下にダンゴムシがたくさんいた。
There were a lot of pill bugs under the stones in the garden.
子どもがダンゴムシを手のひらにのせて遊んでいる。
The child is playing with a pill bug on their palm.