nounWord forms: Latin genitiveAquarii (əˈkwɛərɪˌaɪ)
1. astronomy
a zodiacal constellation in the S hemisphere lying between Pisces and Capricorn on the ecliptic
2. astrology
a. Also called: the Water Carrier
the eleventh sign of the zodiac, symbol ♒, having a fixed air classification and ruled by the planets Saturn and Uranus. The sun is in this sign between about Jan 20 and Feb 18
b.
a person born during a period when the sun is in this sign