AU

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Au

The symbol for gold.

[From Latin aurum, gold.]

AU

abbr.
astronomical unit
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

au

the internet domain name for
(Computer Science) Australia

Au

the chemical symbol for
(Elements & Compounds) gold
[from New Latin aurum]

AU

abbreviation for
1. (Placename) African Union
2. (General Physics) Also: a.u. angstrom unit
3. (Astronomy) Also: a.u. astronomical unit
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

AU

astronomical unit.

Au

1. Also,

au.

author.
2. Chem. Symbol. gold.
[< Latin aurum]

A.U.

or a.u.,

angstrom unit.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Au

The symbol for gold.

AU

Abbreviation of astronomical unit
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.AU - a soft yellow malleable ductile (trivalent and univalent) metallic elementAu - 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
gold foil - foil made of gold
gold leaf - a very thin form of gold foil
gold - coins made of gold
noble metal - any metal that is resistant to corrosion or oxidation
24-karat gold, pure gold - 100 per cent gold
gold dust - the particles and flakes (and sometimes small nuggets) of gold obtained in placer mining
dental gold - an alloy of gold used in dentistry
green gold - a gold alloy (at least 14 karat gold with silver or silver and cadmium) that has a green appearance
guinea gold - 22-karat gold from which guinea coins were made
graphic tellurium, sylvanite - a silver-white mineral consisting of silver gold telluride; a source of gold in Australia and America
2.AU - a unit of length used for distances within the solar systemAU - 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)
astronomy unit - a linear unit used for astronomical distances
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.