From The Collaborative International Dictionary of English v.0.48:
Gaea \Gaea\ (j[=e]"[.a]), prop. n. [Gr. Gai^a, Gh^] (Mythol.)
The goddess of the earth, considered as a personification of
the earth. According to Hesiod she was the first-born of
Chaos, and mother of Uranus, Pontus, Cronus and the Titans in
ancient mythology. [Also spelled Gaia.]
Syn: Gaia, Ge.
[WordNet 1.5]
From The Collaborative International Dictionary of English v.0.48:
Gaia \Gaia\ prop. n. [Gr. gai^a earth.]
Goddess of the earth; same as Gaea.
Syn: Gaea, Ge.
[WordNet 1.5]