Gaia

noun
\ ˈgī-ə How to pronounce Gaia (audio) \

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 (such 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

First Known Use of Gaia

1972, in the meaning defined above

History and Etymology for Gaia

after Greek Gaîa, a primordial earth goddess in Greek myth, literally, "earth" — more at geo-

Keep scrolling for more

Learn More about Gaia

Statistics for Gaia

Cite this Entry

“Gaia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Gaia. Accessed 19 Jan. 2021.

Comments on Gaia

What made you want to look up Gaia? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Words of Snow and Ice Quiz

  • image1037863653
  • Which of the following refers to thin, bending ice, or to the act of running over such ice?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!