noun \ˈgī-ə\

Definition of Gaia

  1. :  the hypothesis that the living and nonliving components of earth function as a single system in such a way that the living component regulates and maintains conditions (as the temperature of the ocean or composition of the atmosphere) so as to be suitable for life; also :  this system regarded as a single organism

Origin and Etymology of gaia

Greek, Gaea

First Known Use: 1972

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