noun
1. a scientist who devotes himself to doing research (Freq. 8)
• Syn: ↑research worker, ↑researcher
• Derivationally related forms: ↑investigate, ↑research (for: ↑researcher)
• Hypernyms: ↑scientist
• Hyponyms: ↑experimenter, ↑boffin, ↑fieldworker, ↑postdoc, ↑post doc
2. someone who investigates (Freq. 1)
• Hypernyms: ↑expert
• Hyponyms:
↑adjuster, ↑adjustor, ↑claims adjuster, ↑claims adjustor, ↑claim agent, ↑coroner, ↑medical examiner, ↑detective, ↑examiner, ↑inspector, ↑ombudsman
• Instance Hyponyms: ↑Wiesenthal, ↑Samuel Wiesenthal
3. a police officer who investigates crimes (Freq. 1)
• Syn: ↑detective, ↑tec, ↑police detective
• Derivationally related forms: ↑investigate
• Hypernyms: ↑policeman, ↑police officer, ↑officer
• Hyponyms: ↑dick, ↑gumshoe, ↑hawkshaw, ↑plainclothesman, ↑tracer
Useful english dictionary. 2012.