Of or relating to exploration; connected with investigation or searching.

Of, relating to, or involving investigation; of the nature of or characteristic of an investigator; that is charged with investigating someone or…

Characterized by or inclined to investigation. Also: of or involving investigation, (now) esp. scientific, criminal, or other types of formal…

Of, relating to, or based on (esp. academic) examination or examinations.

Pertaining to or of the nature of investigation.

That carries out investigation; of the nature of, relating to, or involving investigation.