what is a bifurcation
bifurcation (plural bifurcations) ( 1 biology) A division into two branches. ( 2 by extension) Any place where one thing divides into two. 3  The act of bifurcating; branching or dividing in two.  Either of the forks or other branches resultant from such a 1  division. (geography) A place where two roads, tributaries etc. part or meet.