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Ap star

American  
[ey-pee] / ˈeɪˈpi /

noun

Astronomy.

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

Etymology

Origin of Ap star

First recorded in 1970–75; A (star) ( def. ) + p (abbreviation for peculiar star ; peculiar, def. 6 )

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.