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Seyfert galaxy
Sey·fert gal·ax·y [ sfərt gàlləksee, sfərt gàlləksee ] (plural Sey·fert gal·ax·ies)


noun 
Definition:
 
small spiral galaxy: a small spiral galaxy that varies in brightness and emits radio waves and X-rays
[Mid-20th century. After Carl K. Seyfert (1911-1960), U.S. astronomer]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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