D defs.my
Entry 1 sense Webster, 1913

Aldebaran

/(ăl*dĕb"ȧ*răn)/ · Al·deb·a·ran · IPA /alˈdɛbəɹən/
01 prop. n. A red star of the first magnitude, situated in the eye of Taurus; the Bull's Eye. It is the bright star in the group called the Hyades.
  1. 1.
    A red star of the first magnitude, situated in the eye of Taurus; the Bull's Eye. It is the bright star in the group called the Hyades.(Astron.)
    “Now when Aldebaran was mounted high Above the shiny Cassiopeia's chair.” Spenser.