to flow downstream
- phrasal verb
- As the rain poured, the water began to flow downstream towards the valley.
So many of these problems flow downstream from that.
- So many of these problems flow downstream from that.
Examples
-
As the wave pulled him under, he dove for the bottom where he knew the water was flowing downstream.
Fiction book (2001) -
The dam also trapped sediments that had previously flowed downstream and were deposited in the channel's floodplains, fertilizing the soils.
Academic text (2005) -
Within minutes, the ice began to break up and flow downstream.
Academic text (1991) -
As the wave pulled him under, he dove for the bottom where he knew the water was flowing downstream.
Fiction book (2001) -
It just goes straight in and flows downstream without even spreading out.
Fiction book (1990) -
That chemical waste flows downstream and gets into the crops, making them inedible.
Blog text (28) -
The water boiled, and streaks of oil flowed downstream.
Fiction book (1998) -
Consequently, the full surge of the eastbound water could flow downstream through the bypass south of the original, now truncated tunnels.
Academic text (1994) -
Downstream effects of ice plug: if the pipe was returned to service prior to allowing the ice plug to completely melt, the plug could flow downstream and severely damage equipment and piping.
Academic text (2011) -
Most important for riparian communities, the dam traps rich sediments that would have flowed downstream and been deposited in the river's floodplains.
Academic text (2005)
Synonyms
To move steadily in a stream like a liquid or gas
To flow down a surface like water on a window
To flow into another river, lake, or sea
To trail out in a long, flowing way behind something
Move or pour out in a steady stream, often a liquid
To move along with a strong flow of water
To move away from a surface in a steady stream, like water does
Surface Forms
Morphology
The meaning 'to move in the direction that a river or stream is flowing' is directly and compositionally derived from 'flow' (to move steadily in a current) plus 'downstream' (in the direction of the river's current). This verb + directional adverb pattern is cross-linguistically common and follows standard English composition, so a B1 learner who knows both words would readily understand the MWE.
Etymology
Flow downstream comes from the picture of water or objects moving with the river: they flow and go downstream toward lower ground or the sea. So, it means 'to move in the direction that a river is flowing'.