mandible
Word family adjectivemandibularmandibulatenounmandible
man·di·ble /ˈmændəbəl/ noun [countableC] technical 1. HBAHBFthe jaw bone of an animal or fish, especially the lower jaw 〔动物或鱼的〕颌,颌骨〔尤指下颌骨〕 2. the outside part of a bird’s beak 鸟喙的外部 3. the part of an insect’s mouth that it uses for eating 〔昆虫的〕上颚,大颚 Origin mandible (1500-1600) Late Latin mandibula, from Latin mandere “to chew”