chaos Meaning, Definition & Usage

  1. noun a state of extreme confusion and disorder
    topsy-turvydom; bedlam; topsy-turvyness; pandemonium.
  2. noun the formless and disordered state of matter before the creation of the cosmos
  3. noun (Greek mythology) the most ancient of gods; the personification of the infinity of space preceding creation of the universe
  4. noun (physics) a dynamical system that is extremely sensitive to its initial conditions

WordNet

Cha"os noun
Etymology
L. chaos chaos (in senses 1 & 2), Gr. , fr. (root ) to yawn, to gape, to open widely. Cf. Chasm.
Definitions
  1. An empty, immeasurable space; a yawning chasm. Archaic
    Between us and there is fixed a great chaos. Luke xvi. 26 (Rhemish Trans. ).
  2. The confused, unorganized condition or mass of matter before the creation of distinct and order forms.
  3. Any confused or disordered collection or state of things; a confused mixture; confusion; disorder.

Webster 1913