What does the word cleavage mean?

Usage examples for cleavage

  1. The consciousness of any division or cleavage in its ranks is alien to its very purpose, principles, and ideals. – The Advent of Divine Justice by Shoghi Effendi
  2. But it is, of course, impossible to state beforehand what will be the precise line of cleavage or what form the division between the two parties in interest will take. – An Inquiry Into The Nature Of Peace And The Terms Of Its Perpetuation by Thorstein Veblen