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5 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典


From: Webster's Revised Unabridged Dictionary (1913)

 Ster·num n.; pl. L. Sterna E. Sternums
 1. Anat. A plate of cartilage, or a series of bony or cartilaginous plates or segments, in the median line of the pectoral skeleton of most vertebrates above fishes; the breastbone.
 Note:The sternum is connected with the ribs or the pectorial girdle, or with both. In man it is a flat bone, broad anteriorly, narrowed behind, and connected with the clavicles and the cartilages of the seven anterior pairs of ribs. In most birds it has a high median keel for the attachment of the muscles of the wings.
 2. Zool. The ventral part of any one of the somites of an arthropod.

From: WordNet (r) 2.0

      n : a genus of Sterninae [syn: genus Sterna]

From: WordNet (r) 2.0

      n : the flat bone that articulates with the clavicles and the
          first seven pairs of ribs [syn: breastbone]
      [also: sterna (pl)]

From: WordNet (r) 2.0

      See sternum