单词 | os |
释义 | os os1 /os/, n. , pl. ossa /os"euh/. Anat., Zool. a bone. [1540-50; < L] os2 /os/, n. , pl. ora /awr"euh, ohr"euh/. Anat., Zool. a mouth or orifice of the body. [1730-40; < L os mouth] os3 /ohs/, n. , pl. osar /oh"sahr/. Geol. an esker, esp. when of great length. [ < Sw ås (pl. åsar) ridge] |
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