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单词 ostium
释义
os·ti·um (ŏstē-əm)
n. pl. os·ti·a (-tē-ə)
1. A small opening or orifice, as in a body organ or passage.
2. Any of the small openings or pores in a sponge, through which water is drawn in.

[Latin ōstium, door, opening, from ōs, mouth; see ōs- in the Appendix of Indo-European roots.]
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更新时间:2025/1/7 10:57:05