[see-fee-uh s, -fyoos]

noun, genitive Ce·phe·i [see-fee-ahy] /ˈsi fiˌaɪ/ 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 formsCe·phe·id [see-fee-id] /ˈsi fi ɪd/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cephei

Historical Examples of cephei

  • Alfirk (al-ferk´), or Alphirk, "stars of the flock," β Cephei.

    A Field Book of the Stars

    William Tyler Olcott

  • The star β Cephei has recently been discovered to be a spectroscopic binary with the wonderfully short period of 4h 34m 11s.

  • The pole star lies nearly in a line joining the brighter stars α Cephei and α Cygni.

  • If you have a good field-glass, try its powers upon the star Delta (δ) Cephei.

    Astronomy with an Opera-glass

    Garrett Putman Serviss

British Dictionary definitions for cephei



noun Latin genitive Cephei (ˈsiːfɪˌaɪ)

a faint constellation in the N hemisphere near Cassiopeia and the Pole StarSee also Cepheid variable

Word Origin for Cepheus

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

cephei in Science


[sēfyōōs′, -fē-əs]

A constellation in the Northern Hemisphere near Cassiopeia and Draco.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.