superior conjunction

noun Astronomy.
the alignment of an inferior planet and the sun in which the planet is at the far side of the sun from the earth.

1825–35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
superior conjunction   (s-pîr'ē-ər)  Pronunciation Key 
See under conjunction.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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