noun
: an adverb that introduces a clause qualifying an antecedent (as when in the season when roses bloom; where in entered the room where they were sitting; and why in the reason why he did it )
noun
: an adverb that introduces a clause qualifying an antecedent (as when in the season when roses bloom; where in entered the room where they were sitting; and why in the reason why he did it )
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012