spiral galaxy


spiral galaxy

noun

Definition of SPIRAL GALAXY

:  a galaxy exhibiting a central nucleus or barred structure from which extend curved arms of higher luminosity —called also spiral nebula

First Known Use of SPIRAL GALAXY

1913

Browse

Next Word in the Dictionary: spiral gear
Previous Word in the Dictionary: spirale
All Words Near: spiral galaxy

Seen & Heard

What made you want to look up spiral galaxy? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More