- A flow to or toward an area, especially of blood or other fluid toward a body part.
- The act of flowing to; a flow or flowing to; an accession: as, an <em>afflux</em> of blood to the head.
- A flowing towards; that which flows to.
- an upward rush of fluid
- The rise in water level (above normal) on the upstream side of a bridge or obstruction caused when the effective flow area at the obstruction is less than the natural width of the stream immediately upstream of the obstruction.