a binary star, one component of which is a red giant, the brightest star in the constellation Taurus. It appears in the sky close to the star cluster Hyades. Visual magnitude: 0.85; spectral type: K5III; distance: 65 light years
Word origin
C14: via Medieval Latin from Arabic al-dabarān the follower (of the Pleiades)
Aldebaran in American English
(ælˈdɛbərən)
noun
a giant, orange binary star, the brightest star in the constellation Taurus: magnitude, 0.86
Word origin
Ar al-dabarān < al, the + dabarān, following < dubara, to follow: so called because it follows the Pleiades