Definition of mesosternum in English:

mesosternum

noun

  • 1Entomology. The sternum of the mesothorax of an insect or (especially formerly) an equivalent or associated part. Also (in Zoology): the middle plate of the sternum in brachyuran crabs.

  • 2Anatomy and Zoology. The body of the sternum, situated between the manubrium and the xiphisternum.

Origin

Early 19th century; earliest use found in William Kirby (1759–1850), entomologist and naturalist. From meso- + sternum.

Pronunciation

mesosternum

/ˌmɛsə(ʊ)ˈstəːnəm/