Vocabulary What does 胆石 (たんせき, tanseki) mean? 胆石 (たんせき, tanseki) means gallstone. Quick factsReadingたんせきRomajitansekiPart of speechnoun 胆石たんせきtansekigallstone1noun gallstoneKanji in this word胆gallbladder, bile; courage, boldness石stone