Cygnus

[ sig-nuh s ]
/ ˈsɪg nəs /

noun, genitive Cyg·ni [sig-nahy] /ˈsɪg naɪ/. Astronomy.

the Swan, a northern constellation southwest of Draco, containing the bright star Deneb.

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Origin of Cygnus

< Latin: swan; see cygnet
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British Dictionary definitions for cygnus

Cygnus
/ (ˈsɪɡnəs) /

noun Latin genitive Cygni (ˈsɪɡnaɪ)

a constellation in the N hemisphere lying between Pegasus and Draco in the Milky Way. The constellation contains the Cygnus Loop supernova remnant, the intense radio galaxy Cygnus A, and the intense galactic X-ray source Cygnus X–1, which is probably a black hole

Word Origin for Cygnus

Latin: swan; see cygnet
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

Scientific definitions for cygnus

Cygnus
[ sĭgnəs ]

A constellation in the Northern Hemisphere near Cepheus and Lyra. Cygnus (the Swan, or the Northern Cross) contains the bright star Deneb.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.