Definition of "chaos"

chaos

/ˈkeɪ.ɒs/

noun
usually uncountable, plural chaoses
1. The unordered state of matter in classical accounts of cosmogony.
2. Any state of disorder; a confused or amorphous mixture or conglomeration.
  Quotations
  or out of these chaoses order may be made, out of this ferment a clear wine of life. There are chaoses that have gone too far for retrieval
  1977, Irwin Edman, Adam, the Baby, and the Man from Mars, page 54
3. (mathematics) A behaviour of iterative non-linear systems in which arbitrarily small variations in initial conditions become magnified over time.
4. (fantasy) One of the two metaphysical forces of the world in some fantasy settings, as opposed to law.
5. (obsolete) A vast chasm or abyss.
6. (obsolete, rare) A given medium; a space in which something exists or lives; an environment.
  Quotations
  What is the centre of the earth? is it pure element only, as Aristotle decrees, inhabited (as Paracelsus thinks) with creatures whose chaos is the earth: or with fairies, as the woods and waters (according to him) are with nymphs, or as the air with spirits?
  1624, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy: […], 2nd edition, Oxford, Oxfordshire: Printed by John Lichfield and James Short, for Henry Cripps