桿菌[kankin] bacillus
操縦桿[soujuukan] control column
桿状核球[kanjoukakukyuu] band cell
桿状[kanjou] rod-shaped

桿状体[kanjoutai] rod (shape of cell)
排莢桿筒[haikyoukantou] ejector tube
グラム陰性桿菌[guramuinseikankin] Gram-negative bacillus

ロケット発射筒[rokettohasshatou] rocket launcher
井筒[izutsu] well crib
円筒[entou] cylinder
円筒形[entoukei] cylindrical
気筒[kitou] cylinder

水筒[suitou] canteen
竹筒[takezutsu] bamboo pipe
茶筒[chazutsu] tea caddy
筒状[toujou] cylindrical