noun🔗ShareA helmet."The construction worker wore a bright yellow casque for safety. "wearmilitaryChat with AIVocabulary GamePractice Reading
noun🔗ShareA hard structure on the head of some birds, such as the hornbill or cassowary."The hornbill's large, bony casque sits prominently atop its beak. "animalbirdbodyanatomyChat with AIVocabulary GamePractice Reading
