What is the meaning of Astronomical Unit?

noun

  • 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. ).
    • synonyms: AU
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). Astronomical Unit. Retrieved September 21, 2026, from http://smartdefine.org/astronomical_unit/definitions/1243958
ChicagoWordNet. 2010. "Astronomical Unit" http://smartdefine.org/astronomical_unit/definitions/1243958 (accessed September 21, 2026).
HarvardWordNet 2010, Astronomical Unit, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/astronomical_unit/definitions/1243958>.
MLAWordNet. "Astronomical Unit" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/astronomical_unit/definitions/1243958>