Seyfert galaxy

noun
Sey·fert galaxy | \ ˈsē-fərt- also ˈsī- \

Definition of Seyfert galaxy 

: any of a class of spiral galaxies that have small compact bright nuclei characterized by variability in light intensity, emission of radio waves, and spectra

called also Seyfert

First Known Use of Seyfert galaxy

1959, in the meaning defined above

History and Etymology for Seyfert galaxy

Carl K. Seyfert †1960 American astronomer

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Dictionary Entries near Seyfert galaxy

sey

seybertite

Seychelles

Seyfert galaxy

Seyhan

Seym

Seymeria

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The first known use of Seyfert galaxy was in 1959

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