Constituting a difference or distinction; characteristic; peculiar.

adjective. Constituting difference, or distinction from everything else; distinctive; peculiar; characteristic.

adjective. a special pennant by which any particular vessel in a fleet is recognized and signaled.

verb. Present participle of distinguish.

adjective. That serves to distinguish.

"Likewise, among Christians it has long been conventional to use uppercase Orthodox as a term distinguishing the Christianity that shared forms of liturgy and theology rooted in the Byzantine, or Greek-speaking, part of the Roman Empire from those who took a separate path in the West."

distinguishing pennant  

distinguishing penant  

extinguishing  

accurate  appreciative  characteristic  characteristic  characterizing  

distinguish