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Astronomical Unit

noun

1 Astronomical Unit

A unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers).

synonym: AU.

Dutch: astronomische eenheid, AE
Polish: AU, au, j.a., jednostka astronomiczna

Roget 200: length, longitude, span; mileage; distance etc. 196.    line, bar, rule, stripe, streak, spoke, radius.    ... show more


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