Noun
1. a natural body of running water flowing on or under the earth
2. dominant course (suggestive of running water) of successive events or ideas;
"two streams of development run through American history""stream of consciousness""the flow of thought""the current of history"3. a steady flow (usually from natural causes);
"the raft floated downstream on the current""he felt a stream of air"4. the act of flowing or streaming; continuous progression
5. something that resembles a flowing stream in moving continuously;
"a stream of people emptied from the terminal""the museum had planned carefully for the flow of visitors"