单词 | sternum |
释义 | Word Frequency sternum(ˈstɜːnəm) nounWord forms: plural -na (-nə) or -nums 1. (in humans) a long flat vertical bone, situated in front of the thorax, to which are attached the collarbone and the first seven pairs of ribs Nontechnical name: breastbone2. the corresponding part in many other vertebrates 3. a cuticular plate covering the ventral surface of a body segment of an arthropod Compare tergum Derived forms sternal (ˈsternal) adjective Word origin C17: via New Latin from Greek sternon breastbone |
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