confluence
n.
early 15c., from Late Latin confluentia, from Latin confluentem (nominative confluens), present participle of confluere "to flow together," from com- "together" (see com-) + fluere "to flow" (see fluent).
〔蒋〕[flu=flow流，-ence名词后缀] 合流，汇合，合流点，汇合处，汇流而成的河
〔李〕[con-(com-)=together共；flu=to flow流；-ence n.=the state表状态→] n. flowing of water together with another汇流，汇合/a city at the confluence of two rivers两河交汇处的城市▽confluent [con-;flu;-ent a.] a.合流的；汇合的