| 释义 |
os·ti·um AHD[ŏsʹtē-əm] D.J.[ˈɒstiːəm]K.K.[ˈɑstiəm]n.（名词）【复数】 os.ti.a[-tē-ə] - A small opening or orifice, as in a body organ or passage.小孔：小口或小洞，如在人体器官或人体内的通道上的
- Any of the small openings or pores in a sponge.孔隙：海绵上的小孔或小口
- Latin ōstium [door, opening] 拉丁语 ōstium [门，开口]
- from ōs [mouth] * see ōs- 源自 ōs [口] * 参见 ōs-
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