Cygnus

[ sig-nuhs ]

/ ˈsɪg nəs /

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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

Words nearby Cygnus

cyder, Cydnus, cyesis, CYF, cygnet, Cygnus, Cygnus A, Cygnus X-1, cyke, cyl., cylinder

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use Cygnus in a sentence

The temperature of Cygnus X-1 from Hawking radiation is roughly a billionth of a degree above absolute zero.
Black Holes Exist. So Does Bad Science|Matthew R. Francis|September 28, 2014|DAILY BEAST
Lower-mass black holes, such as Cygnus X-1, are the remnants of very massive stars; those are a story for another day.
Black Hole Pair Caught in Feeding Frenzy|Matthew R. Francis|April 27, 2014|DAILY BEAST
In the year 1670 a new star appeared in the constellation Cygnus, attaining the third magnitude.
Myths and Marvels of Astronomy|Richard A. Proctor
I recollect but one philosopher styled Cygnus; and, what is remarkable, he was of Canaan.
A New System; or, an Analysis of Antient Mythology. Volume II. (of VI.)|Jacob Bryant

A gigantic swan, Cygnus falconeri, is known from the Zebug cavern in Malta.
Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7|Various
Considering it an undescribed species, it was named Cygnus anatodoides.
Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836|Robert FitzRoy
Near Vega is another important constellation, known as the Swan or Cygnus.
The Story of the Heavens|Robert Stawell Ball

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

[ sĭg′nəs ]

A constellation in the Northern Hemisphere near Cepheus and Lyra. Cygnus (the Swan, or the Northern Cross) contains the bright star Deneb.