Nearby Words
apsidal motion
apsidal motion
noun Astronomy.
the rotation of the major axis of an eccentric orbit in the plane of the orbit.
Origin:
1955–60
1955–60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Link To apsidal motion
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Apsidal motion
is always a great word to know.
So is event horizon. Does it mean:
| the boundary around a black hole on and within which no matter or radiation can escape |
| a transient fiery streak in the sky produced by a meteoroid passing through the earth's atmosphere also called a shooting star or bolide |
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