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early-type star

British  

noun

  1. Compare: late-type starastronomy any massive hot star of spectral type O, B, or A

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of early-type star

C20: from the mistaken belief that hot and old stars evolved into cool young stars