Ap star

[ey-pee]

noun Astronomy.

a peculiar A star whose emission spectrum is characterized by abnormally strong lines of certain ionized metals.

Origin of Ap star

1970–75; A (star) + p (abbreviation for peculiar star; see peculiar,def 6)

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018