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[uh-kwair-ee-uh s] /əˈkwɛər i əs/
genitive Aquarii
[uh-kwair-ee-ahy] /əˈkwɛər iˌaɪ/ (Show IPA).
Astronomy. the Water Bearer, a zodiacal constellation between Pisces and Capricornus.
  1. the eleventh sign of the zodiac: the fixed air sign.
  2. a person born under this sign, usually between January 20th and February 18th; an Aquarian.
Can be confused
aquarium, Aquarius. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Aquarius
Contemporary Examples
Historical Examples
  • Greenish in color and situated in the water jar of Aquarius.

    A Field Book of the Stars William Tyler Olcott
  • The Austro-Hungarians have a man in the moon who is a sort of Aquarius.

    Moon Lore Timothy Harley
  • The Sun enters Aquarius about the 21st of January each year.

  • But they forgot that Aquarius was known long before the invention of fountains.

  • The only folks who never heard of Aquarius live in the corn-belt of Kentucky.

British Dictionary definitions for Aquarius


noun (Latin genitive) Aquarii (əˈkwɛərɪˌaɪ)
(astronomy) a zodiacal constellation in the S hemisphere lying between Pisces and Capricorn on the ecliptic
  1. 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
  2. a person born during a period when the sun is in this sign
(astrology) born under or characteristic of Aquarius
Also (for senses 2b, 3) Aquarian (əˈkwɛərɪən)
Word Origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for Aquarius

faint constellation and 11th zodiac sign, late Old English, from Latin aquarius, literally "water carrier," properly an adjective, "pertaining to water" (see aquarium); a loan-translation of Greek Hydrokhoos "the water-pourer," old Greek name of this constellation.

Aquarians were a former Christian sect that used water instead of wine at the Lord's Supper. Age of Aquarius (1940) is an astrological epoch supposed to have begun in the 1960s, embodying the traits of this sign and characterized by world peace and human brotherhood. The term and the concept probably got a boost in popular use when An Aquarian Exposition was used as the sub-name of the Woodstock Music & Art Fair (1969).

Online Etymology Dictionary, © 2010 Douglas Harper
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Aquarius in Science
A constellation in the Southern Hemisphere near Pisces and Aquila. Aquarius (the Water Bearer) is the 11th sign of the zodiac.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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