< /ˌkæs i əˈpi i/ for 1.

  1. Astronomy. a northern constellation between Cepheus and Perseus.
  2. Classical Mythology. the wife of Cepheus and mother of Andromeda.


  1. Greek myth the wife of Cepheus and mother of Andromeda

noun Latin genitive Cassiopeiae (ˌkæsɪəˈpiːiː)

  1. a very conspicuous W-shaped constellation near the Pole Star. Cassiopeia A is a very strong radio and X-ray source, identified as the remnant of a supernova thought to have occurred in the late 17th century

northern constellation, in Greek mythology queen of Ethiopia and mother of Andromeda, from Latinized form of Greek Kassiepeia, Kassiopeia, of unknown etymology. Related: Cassiopeian.

  1. A W-shaped constellation in the Northern Hemisphere near Andromeda and Cepheus.

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