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apsidal motion

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noun Astronomy.
the rotation of the major axis of an eccentric orbit in the plane of the orbit.
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of apsidal motion

First recorded in 1955–60

Words nearby apsidal motion

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use apsidal motion in a sentence

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