The Collaborative International Dictionary
Dioristic
Dioristic \Di`o*ris"tic\, a. [Gr. ?.]
Distinguishing; distinctive; defining. [R.] --
Di`o*ris"tic*al*ly, adv. [R.]
--Dr. H. More.
Wiktionary
dioristic
a. (context dated English) that distinguishes or defines something; distinctive