Definition of investigative adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ɪnˈvestɪɡətɪv//
; NAmE NAmE//ɪnˈvestɪɡeɪtɪv//
(less frequent investigatory
BrE BrE//ɪnˈvestɪɡətəri//
; NAmE NAmE//ɪnˈvestɪɡətɔːri//
[usually before noun]
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involving examining an event or a situation to find out the truth The article was an excellent piece of investigative journalism. The police have full investigatory powers.
See the Oxford Advanced American Dictionary entry: investigative