Interrogatory

Noun

 * 1) A formal question submitted to opposing party to answer, generally governed by court rule.
 * 2) A question; an interrogation.

Adjective

 * 1) Serving to interrogate; questioning.
 * an interrogatory glance

Thesaurus
answering, catechistic, communicating, communicational, communional, conversational, curious, inquiring, inquisitional, inquisitorial, interacting, interactional, interactive, intercommunicational, intercommunicative, intercommunional, interresponsive, interrogation, interrogational, interrogative, linguistic, oral, query, querying, question, questioning, quizzical, quizzing, responsive, speech, telepathic, transmissional, verbal