noun🔗ShareA hind wing on an insect."The moth flashed its vibrant underwings as it flew away from the porch light. "insectanimalbiologypartChat with AIVocabulary GamePractice Reading
noun🔗ShareA member of the genus Catocala, a nocturnal moth which usually has brightly coloured underwings."The collector carefully pinned the underwings, their crimson markings vibrant against the dark background. "animalinsectnatureorganismChat with AIVocabulary GamePractice Reading
noun🔗ShareThe underside of a bird's wing."As the hawk soared overhead, we could see the bright white feathers of its underwings. "birdanatomyanimalpartChat with AIVocabulary GamePractice Reading
