Episternum
Episternum , noun
[New Latin See Epi-, and Sternum.]
1.
(a) (Anatomy) A median bone connected with the sternum, in many vertebrates; the interclavicle.
(b)
(Anatomy) Same as Epiplastron.
2.
(Zoology) One of the lateral pieces next to the sternum in the thorax of insects.