metasternum definition

  • noun:
    • The most posterior component of the sternum; the ensiform process; xiphisternum
    • The ventral plate of the next or last section of this thorax of pests.
    • the essential posterior component of the sternum; the ensiform process; xiphisternum.
    • The ventral plate of the third or last segment of this thorax of insects.
    • In physiology, the hindmost segment or final sterneber of breast-bone; the xiphisternum, in man represented by the xiphoid cartilage or ensiform appendage.
    • In entomology, the sternite of metathorax; the median area of the postpectus.

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