First Known Use: 1551
Dictionary
Cygnus
noun Cyg·nus \ˈsig-nəs\
Definition of CYGNUS
: a northern constellation between Lyra and Pegasus in the Milky Way
See Cygnus defined for kids
ADVERTISEMENT
Origin of CYGNUS
Latin (genitive Cygni), literally, swan
Seen & Heard
What made you want to look up Cygnus? Please tell us where you read or heard it (including the quote, if possible).