interrogative (Adjective) — (grammar) relating to verbs in the so-called interrogative mood. ex. "not all questions have an interrogative construction"
interrogative (Adjective) — Relating to the use of or having the nature of an interrogation.
interrogative (Noun) — A sentence of inquiry that asks for a reply. ex. "he asked a direct interrogative sentence"
interrogative (Noun) — Some linguists consider interrogative sentences to constitute a mood.