循じゅん環かん系けいMeaningsNoun1. circulatory system (blood, lymph, etc.)Kanji used循sequential環loop系lineagePitch accentじゅんかんけいComposed of循じゅん環かんcirculation; rotation; cycle; loopNoun系けいsystem; lineage; group; corollary; system (range of strata that correspond to a particular time period); (taxonomical) seriesNoun