a liquid that is put into a person’s rectum (= the opening through which solid waste leaves the body) in order to clean out the bowels, especially before a medical operation; the act of cleaning out the bowels in this way 灌肠剂；（尤指手术前的）灌肠 Word Originlate Middle English: via late Latin from Greek, from enienai ‘send or put in’, from en- ‘in’ + hienai ‘send’.