Dictionary
Sey'fert gal"axy
Pronunciation: (sī'furt, sē'-), [key]
Astron.
one of a group of spiral galaxies with compact, bright nuclei having characteristically broad emission lines suggestive of very hot gases in violent motion at the center.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
