| 单词 | sternum |
| 释义 | sternum /sterr"neuhm/, n. , pl. sterna /-neuh/, sternums. 1. Anat. , Zool. a bone or series of bones extending along the middle line of the ventral portion of the body of most vertebrates, consisting in humans of a flat, narrow bone connected with the clavicles and the true ribs; breastbone. See diag. under skeleton. 2. the ventral surface of a body segment of an arthropod. [1660-70; < NL < Gk stérnon chest, breastbone] |
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