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The position of an inferior planet (Mercury or Venus) when it lies on a direct line extending from Earth through the center of the sun.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||superior conjunction - (astronomy) the alignment of the Earth and a planet on the opposite side of the sun|
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
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