Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
distinguishing [dɪsˈtɪŋgwɪʃɪŋ] adj (feature) отличи́тельный
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
distinguish [dɪsˈtɪŋgwɪʃ]
vt различа́ть (различи́ть perf)
to distinguish (between) проводи́ть*(провести́*perf) разли́чие (ме́жду +instr)
to distinguish o.s. отлича́ться (отличи́ться perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: