Main Entry: pachy·der·ma·tous

Pronunciation: \ˌpa-ki-ˈdər-mə-təs\

Function: adjective

Etymology: ultimately from Greek pachys + dermat-, derma skin

Date: 1823

1 : of or relating to the pachyderms
2 a : thick, thickened <pachydermatous skin> b : callous, insensitive