Meaning of branch point

branch' point"

Pronunciation: [key]
  1. a point in an electric network at which three or more conductors meet.
  2. a point such that analytic continuation of a given function of a complex variable in a small neighborhood of the point produces a different functional value at the point.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.