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

Dictionary Entries near Gaia

Gahanna

gahe

gahnite

Gaia

gaiac

gaiassa

gaiety

Statistics for Gaia

Look-up Popularity

Time Traveler for Gaia

The first known use of Gaia was in 1972

See more words from the same year

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

behavior toward others

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

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!