Meaning of mesostethium in English:

mesostethium

Pronunciation /ˌmɛsə(ʊ)ˈstiːθɪəm/

noun

rare Entomology
  • In certain insects: a region of the ventral part of the metathorax, just in front of the coxae of the posterior legs.

Origin

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