D defs.my
Entry 1 sense Webster, 1913

Cepheus

· Ce·pheus · IPA /ˈsiːfi.əs/
01 n. A northern constellation near the pole. Its head, which is in the Milky Way, is marked by a triangle formed by three stars of the fourth ma…
  1. 1.
    A northern constellation near the pole. Its head, which is in the Milky Way, is marked by a triangle formed by three stars of the fourth magnitude. See Cassiopeia.(Astron.) See: Cassiopeia