+446.+ A dependent clause in a complex sentence may also be an adjective
clause.
+An adjective clause is a clause used as an adjective+, and, hence,
always modifies a noun or some word used as a noun, such as a pronoun or
a participle. In Lesson 22, we studied adjective clauses and found that
they could be introduced by the relative pronouns, _who_, _which_,
_that_ and _as_, and also by conjunctions such as, _when_, _where_,
_whither_, _whence_, etc. An adjective clause may modify any noun or any
word used as a noun in the sentence.