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astrometric binary

American  

noun

Astronomy.

  1. a binary star that can be recognized as such because of its undulating proper motion.

astrometric binary Scientific  
/ ăs′trə-mĕt′rĭk /

  1. See under binary star

Etymology

Origin of astrometric binary

First recorded in 1975–80

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.