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movable maxillary /ˈmaʊntɪn ˈtɒɹənt/ n

中文：活动上颌骨

中文 · 活动上颌骨Español · maxilar separableFrançais · maxillaire basculant
Meaning：Highly mobile bone of the upper jaw allowing the snake to swallow large prey.
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Venomous snake head

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