Definition of confluences:
(n) :
The place where two rivers, streams, or other continuously flowing bodies of water meet and become one, especially where a tributary joins a river.
(n) :
The act of combining that occurs where two rivers meet.
(n) :
The stream or body formed by the junction of two or more streams; a combined flood.
(n) :
A convergence or combination of forces, people, or things.
(v) :
(intransitive, transitive) To join together into one stream.
(n) :
(biology) The proportion of cells, in a culture medium, that adhere to each other.