0 a small constellation (= a group of stars) said to look like a ram (= a male sheep with horns):
He points out the Aries constellation.
My boyfriend is an Aries.
1 the first sign of the zodiac, covering the period March 21 to April 19 and represented by a ram, or a person born during this period
The constellation of Aries is little more than a crooked line of three stars.
They were studying a galaxy about 440 million light years away, in the direction of the constellation Aries.
Western astrology has 12 signs or constellations from Aries to Pisces.
