(Greek mythology) The most ancient of gods; the personification of the infinity of space preceding creation of the universe.

ETYM Latin chaos chaos, Greek chaos, from chainein (root cha) to yawn, to gape, to open widely. Related to Chasm.
1. A state of extreme confusion and disorder; SYN. pandemonium, bedlam, topsy-turvydom, topsy-turvyness.
2. The formless and disordered state of matter before the creation of the cosmos.