1The middle or middle segment of the body of an animal or human; (Zoology) the mesosoma or thorax of an invertebrate.
A structure found in the cleavage furrow between two daughter cells towards the end of telophase in animal cells, containing the remains of the spindle microtubules.
Situated in or forming the middle portion of the body of an organism; of or relating to this part.
Early 17th century; earliest use found in John Pory (bap. 1572, d. ?1636), writer and colonial administrator. From mid + body.