Seyfert galaxy Hear it!

Seyfert galaxy definition

☆ Sey·fert galaxy (sē′fərt)

any of a number of spiral galaxies with a small, intensely bright nucleus and a spectrum with strong, broad spectral lines

Etymology: after Carl K. Seyfert, U.S. astronomer who discovered them in the 1940s

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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