n.an animal having teeth consolidate with the inner surface of the alveolar ridge without sockets
英汉双解大词典
pleurodont/ˈplʊərəʊˌdɒnt/
1.
ADJ(形容词)
(of the teeth of some reptiles) having no roots and being fused by their lateral sides only to the inner surface of the jawbone (某些爬行动物的牙齿)侧生的 → see also acrodont