Astron.
a type of star showing bright emission lines superimposed on its normal absorption spectrum, presumably caused by a gaseous shell around the star.
Astron.
a type of star showing bright emission lines superimposed on its normal absorption spectrum, presumably caused by a gaseous shell around the star.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012