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Ap star

[ey-pee] /ˈeɪˈpi/
noun, Astronomy
1.
a peculiar A star whose emission spectrum is characterized by abnormally strong lines of certain ionized metals.
Origin
1970-1975
1970-75; A (star) + p (abbreviation for peculiar star)
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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