Longman Dictionary English Word family noun investigation investigatory adjective investigative investigatory verb investigate From Longman Dictionary of Contemporary Englishinvestigatoryin‧ves‧ti‧ga‧to‧ry /ɪnˈvestəɡətəri $ -ɡətɔːri/ adjective [only before noun] INVESTIGATErelating to investigating something the investigatory powers of the Office of Fair Trading ldoceonline.com
