We found 29 dictionaries that define the word Gaia:

General (17 matching dictionaries)

1. Gaia: Merriam-Webster
2. Gaia: Oxford Learner's Dictionaries
3. Gaia: American Heritage Dictionary of the English Language
4. Gaia: Collins English Dictionary
5. Gaia: Vocabulary.com
6. Gaia, gaia: Wordnik
7. Gaia: Wiktionary
8. Gaia: Webster's New World College Dictionary, 4th Ed.
9. gaia: Dictionary.com
10. Gaia: Online Etymology Dictionary
11. GAIA (journal), Gaia (Armin van Buuren alias), Gaia (Final Fantasy VII), Gaia (Havana), Gaia (Rome character), Gaia (artist), Gaia (arts venue), Gaia (band), Gaia (comics), Gaia (disambiguation), Gaia (game company), Gaia (goddess), Gaia (mythology), Gaia (spacecraft), Gaia: Wikipedia, the Free Encyclopedia
12. Gaia: Rhymezone
13. GAIA, gaia: Stammtisch Beau Fleuve Acronyms
14. gaia: FreeDictionary.org
15. gaia: Mnemonic Dictionary
16. Gaia: TheFreeDictionary.com
17. Gaia: Merriam-Webster

Art (1 matching dictionary)

18. Encyclopedia Mythica (No longer online)

Business (1 matching dictionary)

19. Gaia: Financial dictionary

Computing (2 matching dictionaries)

20. GAIA: Free On-line Dictionary of Computing
21. GAIA, Gaia (disambiguation), Gaia (mythology): Encyclopedia

Medicine (2 matching dictionaries)

22. online medical dictionary (No longer online)
23. Gaia: Medical dictionary

Miscellaneous (3 matching dictionaries)

24. baby names list (No longer online)
25. GAIA: Acronym Finder
26. AbbreviationZ (No longer online)

Religion (1 matching dictionary)

27. Irivng Hexham's Concise Dictionary of Religion (No longer online)

Science (1 matching dictionary)

28. On-Line Biology Book: GLOSSARY (No longer online)

Slang (1 matching dictionary)

29. Gaia: Urban Dictionary

(Note: See gaias as well.)

Definitions from Wiktionary (Gaia) ▸ noun:  (ecology) The ecosystem of the Earth regarded as a self-regulating superorganism. ▸ noun:  (Greek mythology) A Greek goddess, the personification of the earth, and one of the primordial deities from whom all the others descend. Similar: Gaea, ge, Gaia hypothesis, ecosphere, macroecosystem, biosphere, ecogroup, geosystem, ecosystem, geoecosystem, more... Opposite: anti-gaia, anti-earth Phrases: Gaia hypothesis, gaia theory, Vila Nova de Gaia, Gaia philosophy, Gaia Weiss, more... Adjectives: greek, huge, old, ancient, new, great, strong, gigantic, second, promethee, more Colors:     green,     earth brown,     sky blue,     forest green,     ocean blue, more... ▸ Word origin ▸ Words similar to Gaia ▸ Usage examples for Gaia ▸ Idioms related to Gaia ▸ Wikipedia articles (New!) ▸ Popular adjectives describing Gaia ▸ Words that often appear near Gaia ▸ Rhymes of Gaia ▸ Invented words related to Gaia