polar flattening
Astronomy
noun
The extent to which the polar diameter of a planet is shorter than the mean equatorial diameter.
Origin
Late 18th century; earliest use found in Philosophical Transactions of the Royal Society of London.
| 单词 | polar flattening |
| 释义 | polar flatteningAstronomy noun The extent to which the polar diameter of a planet is shorter than the mean equatorial diameter. Origin |
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