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[see-fee-uh s, -fyoos] /ˈsi fi əs, -fyus/
noun, genitive Cephei
[see-fee-ahy] /ˈsi fiˌaɪ/ (Show IPA),
for 1.
Astronomy. a northern circumpolar constellation between Cassiopeia and Draco.
Also, Kepheus. Classical Mythology. an Ethiopian king, the husband of Cassiopeia and father of Andromeda.
Related forms
[see-fee-id] /ˈsi fi ɪd/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for cephei
Historical Examples
  • The star β cephei has recently been discovered to be a spectroscopic binary with the wonderfully short period of 4h 34m 11s.

    Astronomical Curiosities J. Ellard Gore
  • Alfirk (al-ferk´), or Alphirk, "stars of the flock," β cephei.

    A Field Book of the Stars William Tyler Olcott
  • If you have a good field-glass, try its powers upon the star Delta (δ) cephei.

    Astronomy with an Opera-glass Garrett Putman Serviss
  • The pole star lies nearly in a line joining the brighter stars α cephei and α Cygni.

British Dictionary definitions for cephei


noun (Latin genitive) Cephei (ˈsiːfɪˌaɪ)
a faint constellation in the N hemisphere near Cassiopeia and the Pole Star See also Cepheid variable
Word Origin
from Latin Cēpheus named after the mythical king


(Greek myth) a king of Ethiopia, father of Andromeda and husband of Cassiopeia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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cephei in Science
  (sē'fys', -fē-əs)   
A constellation in the Northern Hemisphere near Cassiopeia and Draco.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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