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astrometric binary

noun, Astronomy
1.
a binary star that can be recognized as such because of its undulating proper motion.
Origin
1975-1980
1975-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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astrometric bin-aries in Science
astrometric binary
  (ās'trə-mět'rĭk)   
See under binary star.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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