[ lĕn-tĭk′yə-lər ]
A galaxy having a central bulge surrounded by a flattened disk with no pattern of spiral arms. Lenticular galaxies are intermediate in the Hubble classification system between elliptical and spiral forms and are classified using the designation S0, or SB0 if they have a bar of stars, gas, and dust through the nucleus. Like spiral galaxies, they are disk-shaped with a central bulge, but like elliptical galaxies they contain relatively little gas and dust. Compare elliptical galaxy irregular galaxy spiral galaxy. See more at Hubble classification system.
A THANKSGIVING SPELLING QUIZ TO FEED YOUR HISTORY KNOWHOW
Before you celebrate family and blessings this year, take this quiz to test your spelling knowledge of the history and important figures of the first Thanksgiving.
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Words nearby lenticular galaxy
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.