Identifying p. pr. & vb. n. : of Identify

Example:
What year did Glock begin adding Identifying marks to their hammer forged barrels?

Taxonomy
iden, Merriam-Webster Online Dictionary, Dictionary, webster, fy, Word Games, Webster Online Dictionary with audio pronunciations, fi, thesaurus, glossary, english, language, ESL, Inflected, fied, transitive verb, spirit, principle.

Defination from the web:
identify from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... cause to be or become identical b : to conceive as united (as in spirit, outlook, or principle) <groups that are identified with conservation> ...