先せん行こう研けん究きゅうMeaningsNoun1. prior research; previous workKanji used先before (timewise)行go研refine究researchComposed of先せん行こうgoing ahead; going first; preceding; coming before; being ahead (e.g. of the times); occurring first; happening prior; scoring first; getting off to a lead; stalkerNoun研けん究きゅうresearch; study; investigationNoun