心血管系统 xīnxuèguǎnxìtǒng cardiovascular system Origin Definitions Defs Strokes Stroke Words Sentences Sents 心血管 xīnxuèguǎn cardiovascular pertaining to the heart and blood vessels系统 系統 xìtǒng noun system A whole composed of parts that work together to perform a function or achieve a goal; a series or group of related things forming a complex whole.