noun Download 🔗Share Any of the terrestrial isopod crustaceans of suborder Oniscidea, which have a rigid, segmented exoskeleton, often being capable of rolling into a ball, and feed only on dead plant matter, usually living in damp, dark places, such as under stones or bark. Examples : "I found a tiny woodlouse hiding under a damp log in the garden. " animal insect organism biology nature environment Chat with AIVocabulary GamePractice Reading