pro·nom·i·nal 
(pr
ō-n
ŏm
ə-n
əl)
adj.1. Of, relating to, or functioning as a pronoun.
2. Resembling a pronoun, as by specifying a person, place, or thing, while functioning primarily as another part of speech. His in his choice is a pronominal adjective.
[Late Latin prōnōminālis, from Latin prōnōmen, prōnōmin-, pronoun : pro-, in place of; see PRO-1 + nōmen, name, noun; see NOUN.]
pro·nomi·nal·ly adv.