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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Research assistant 7 letters:

LABTECH: Research assistant
POSTDOC: Lab research assistant, maybe
LABTECH: Research assistant, informally
LABHELPERS: Research assistants
OFFICESTAFF: Research assistants, managers, et al.
OFMICEANDME: Novel about a research-lab assistant's reminiscences?