Gemini
noun
Gem·i·ni ˈje-mə-ˌnī 
-(ˌ)nē
-(ˌ)nē ˈge-mə-ˌnē
plural in form but singular in construction
1
: the third zodiacal constellation that is pictorially represented as the twins Castor and Pollux sitting together, that is visible in the sky on the opposite side of the Milky Way from Taurus and Orion, and that is located between Cancer and Taurus in the zodiac
2
a
: the third sign of the zodiac in astrology see Signs of the Zodiac Table
b
: one born under the sign of Gemini
Word History
Etymology
Latin (genitive Geminorum), literally, the twins (Castor and Pollux)
First Known Use
14th century, in the meaning defined at sense 1
Kids Definition
Gemini
noun
Gem·i·ni ˈje-mə-nē
-ˌnī
1
: a constellation between Taurus and Cancer usually pictured as twins sitting together
2
: the third sign of the zodiac or a person born under this sign