coresearcher

noun

co·​re·​search·​er

(ˌ)kō-ri-ˈsər-chər,

-ˈrē-ˌsər- 

variants or co-researcher

plural coresearchers or co-researchers

: one that engages in research with another

She and her coresearchers presented their findings.

… was sharply challenged by numerous co-researchers, who claimed the study's results were tentative, ambiguous and negligible …

—Katha Pollitt

Word History

First Known Use

1891, in the meaning defined above