mes·o·tho·rax (měz
ə-thôr
ăks
, -thōr
-, měs
-)
n. pl. mes·o·tho·rax·es or
mes·o·tho·ra·ces (-thôr
ə-sēz
, -thōr
-)
The middle of the three divisions of the thorax of an insect, bearing the middle pair of legs and the first pair of wings.
[TahlilGaran] American Dictionary ▲