Definition of Gaian in US English:

Gaian

adjective

  • Relating to or denoting the Gaia hypothesis, the theory that living matter on the earth collectively defines and regulates the material conditions necessary for the continuance of life.

    ‘the fragility of any natural or Gaian order’

noun

  • A supporter of the Gaia hypothesis.

    ‘he will listen to the Gaians about the benefits of a green society’

Pronunciation

Gaian

/ˈɡīən//ˈɡaɪən/