| 单词 | amnion |
| 释义 | amnion /am"nee euhn/, n. , pl. amnions, amnia /-nee euh/. 1. Anat. , Zool. the innermost of the embryonic or fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended. 2. Zool. a similar membrane of insects and other invertebrates. [1660-70; < Gk, equiv. to amn(ós) lamb (see YEAN) + -ion dim. suffix] |
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