WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
someone who investigates
noun.
a police officer who investigates crimes
noun.
a scientist who devotes himself to doing research
Word Usage
"Okay, let me get this straight ... the State of Alaska personnel board investigator is saying Sarah Palin should make the State pay legal bills for fighting these frivolous ethics complaints instead of paying them from private donors?"