What is "apodeme"

Apodeme \Ap"o*deme\, n. [Pref. apo- + Gr. ? body.] (Zo["o]l.) One of the processes of the shell which project inwards and unite with one another, in the thorax of many Crustacea. [1913 Webster] ||

n. (context anatomy English) An ingrowth of the arthropod exoskeleton, serving as an attachment site for muscles.

n. ridge-like ingrowth of the exoskeleton of an arthropod that supports internal organs and provides attachment points for muscles