1. (

• feeder ,
• tributary ,
• confluent ,
• affluent

) a branch that flows into the main stream ;

1. (

• tributary

) (of a stream) flowing into a larger stream ;

2. (

• tributary

) paying tribute; "a tributary colony" ;

3. (

• conducive ,
• contributing ,
• contributive ,
• contributory ,
• tributary

) tending to bring about; being partly responsible for; "working conditions are not conducive to productivity"; "the seaport was a contributing factor in the growth of the city"; "a contributory factor" ;