薬やく室しつやくしつMeanings1nounchamber (of a gun)Technical term for the part of a firearm where a cartridge is inserted before firing.薬やく室しつに弾たまを込こめる。Load a round into the chamber.この銃じゅうの薬やく室しつは簡かん単たんに掃そう除じできる。The chamber of this gun is easy to clean.