discontinuities

/D IH0 S K AA0 N T IH0 N UW1 IH0 T IY0 Z/
noun
  1. 1

    A lack of continuity, regularity or sequence; a break or gap.

  2. 2

    A point in the range of a function at which it is undefined or discontinuous.

  3. 3

    A subterranean interface at which seismic velocities change

Source: https://en.wiktionary.org/wiki/discontinuities, https://en.wiktionary.org/wiki/discontinuity