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.

Origin of Cygnus

< Latin: swan; see cygnet

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cygnus

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
"Sure, Cygnus," he muttered, and closed his eyes and dropped off to sleep.
Master of None|Lloyd Neil Goble
In the year 1670 a new star appeared in the constellation Cygnus, attaining the third magnitude.
Myths and Marvels of Astronomy|Richard A. Proctor
McGuire is taking us straight toward Cygnus at two gees and won't stop.
A Spaceship Named McGuire|Gordon Randall Garrett

The cygnus niger of Juvenal is no rara avis in Australia; and time has here given ample proof of the ornithorynchus paradoxus.
The Works of Charles and Mary Lamb|Charles Lamb
There are in Cygnus five principal stars, which form a constellation of rather remarkable form.
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

Science 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.