Word Study
researcher
CIDE DICTIONARY
researcher, n.
One who conducts research. In the field of scientific research, also called an investigator or scientist . [1913 Webster]
THESAURUS
researcher
analyst, analyzer, assayer, delver, digger, essayer, experimenter, hunter, perquisitor, ransacker, research worker, researchist, rummager, searcher, seeker, test driver, test pilot, tester, tryer-out, zeteticFor further exploring for "researcher" in Webster Dictionary Online