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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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