Aquarius
Pronunciation: /əˈkwɛːrɪəs/
- 1 Astronomy a large constellation (the Water Carrier or Water Bearer), said to represent a man pouring water from a jar. It contains no bright stars but has several planetary nebulae.
- (as genitive Aquarii /əˈkwɛːrɪʌɪ/) used with preceding letter or numeral to designate a star in this constellation: the star Alpha Aquarii


Origin:
Latin aquarius 'of water', used as a noun to mean 'water carrier'