noun
- A soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia.
- synonyms: gold, atomic number 79
- 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: Astronomical Unit
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Au. Retrieved September 20, 2026, from http://smartdefine.org/au/definitions/1258455 |
| Chicago | WordNet. 2010. "Au" http://smartdefine.org/au/definitions/1258455 (accessed September 20, 2026). |
| Harvard | WordNet 2010, Au, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/au/definitions/1258455>. |
| MLA | WordNet. "Au" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/au/definitions/1258455> |