循じゅん環かん系けい統とうMeaningsNoun1. circulatory system (blood, lymph, etc.)Kanji used循sequential環loop系lineage統overallComposed of循じゅん環かんcirculation; rotation; cycle; loopNoun系けい統とうsystem; lineage; ancestry; family line; group (e.g. of colors) (colours); family (e.g. of languages); party; school (of thought); close (evolutionary) relationship; a population sharing a common ancestor (in genetics); …Noun