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Definition of GAIA
: 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 of GAIA
First Known Use: 1975
Next Word in the Dictionary: gaiac Previous Word in the Dictionary: gahnite All Words Near: Gaia
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