aquarius, n. [L. aquarius, adj., relating to water, and n., a water-carrier, fr. aqua. See Aqua.].
The Water-bearer; the eleventh sign in the zodiac, which the sun enters about the 20th of January; -- so called from the rains which prevail at that season in Italy and the East. [1913 Webster]
aquarius, n.
1 a constellation, traditionally regarded as contained in the figure of a water-carrier.
2 a the eleventh sign of the zodiac (the Water-carrier). b a person born when the sun is in this sign.