investigator Meaning, Definition & Usage

  1. noun a scientist who devotes himself to doing research
    researcher; research worker.
  2. noun someone who investigates
  3. noun a police officer who investigates crimes
    detective; tec; police detective.

WordNet

In*ves"ti*ga`tor noun
Etymology
L.: cf. F. investigateur.
Definitions
  1. One who searches diligently into a subject.

Webster 1913