lenticular galaxy(redirected from S0 galaxy)
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Related to S0 galaxy: Elliptical galaxy
lenticular galaxy NGC 5866 in the northern constellation Draco
A galaxy having a central bulge surrounded by a flattened disk that contains numerous stars but relatively little interstellar matter, creating a conspicuous pattern of spiral arms.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.