Entry 1 sense Webster, 1913 Excern · Ex·cern · IPA /ɪkˈsɜː(ɹ)n/ 01 v. t. To excrete; to throw off through the pores; as, fluids are excerned in perspiration. 1. To excrete; to throw off through the pores; as, fluids are excerned in perspiration.[R.]