Webster's English Dictionary

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cassiopeia

Cas.si.o.pe.ia \.kas-e--*-'pe--(y)*\ n [L, fr. Gk Kassiopeia] [L (gen. 
   Cassiopeiae) fr. Gk Kassiopeia] 1: the mother of Andromeda  2: a northern 
   constellation between Andromeda and Cepheus