n. 25B6; noun
medical research : INVESTIGATION, experimentation, testing, analysis, fact-finding, examination, scrutiny, scrutinization.
he continued his researches : EXPERIMENTS, experimentation, tests, inquiries, studies.
the phenomenon has been widely researched : INVESTIGATE, study, inquire into, look into, probe, explore, analyse, examine, scrutinize, review.
I researched all the available material : STUDY, read (up on), sift through; informal check out.