Meaning of relative pronoun

rel'ative pro'noun

Pronunciation: [key]
  1. one of the pronouns who, whom, which, what, their compounds with -ever or -soever, or that used as the subordinating word to introduce a subordinate clause, esp. such a pronoun referring to an antecedent. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.