noun🔗Share蜡膜 A waxy protuberance at the base of the upper beak in certain birds."The budgerigar's ceres was a vibrant blue, indicating it was a male ready to breed. "这只虎皮鹦鹉的蜡膜是鲜艳的蓝色，表明它是一只准备好繁殖的雄性。animalbirdanatomypartbiologyChat with AIVocabulary GamePractice Reading
