横よこ穴あな式しき石せき室しつよこあなしきせきしつじ字FuriganaMeanings1nounhorizontal stone chamber; corridor-type stone burial chamberhistorical termArchaeological term for a type of stone burial chamber used in ancient Japanese tumuli (kofun), entered from the side rather than the top.この古こ墳ふんには横よこ穴あな式しき石せき室しつが設もうけられ