isostatic

/AY0 S OW0 S T AE1 T IH0 K/
noun
  1. 1

    A line of constant stress.

  2. 2

    A state of equilibrium between two forces.

adjective
  1. 1

    Of or pertaining to isostasy or isostatics

Source: https://en.wiktionary.org/wiki/isostatic