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单词 antrum
释义
an·trum (ăntrəm)
n. pl. an·tra (-trə)
1. A cavity or chamber, especially one in a bone.
2. Either of the sinuses in the bones of the upper jaw, opening into the nasal cavity.

[Late Latin, cavity in the body, from Latin, cave, from Greek antron.]

antral adj.
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更新时间:2025/3/22 10:24:54