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au

[ oh ]
/ oʊ /
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plural aux [oh]. /oʊ/. French.

to the; at the; with the.

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Definition for au (2 of 5)

Au1

abbreviation

author.Also au

Definition for au (3 of 5)

Au2

Symbol, Chemistry.

gold.

Origin of Au

2
From the Latin word aurum

Definition for au (4 of 5)

AU

abbreviation

Definition for au (5 of 5)

A.U.

or a.u.


abbreviation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for au (1 of 3)

au

the internet domain name for

Australia

British Dictionary definitions for au (2 of 3)

Au

the chemical symbol for

gold
from New Latin aurum

British Dictionary definitions for au (3 of 3)

AU

abbreviation for

African Union
Also: a.u. angstrom unit
Also: a.u. astronomical unit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for au (1 of 2)

Au

The symbol for the elementgold

Medical definitions for au (2 of 2)

AU

abbr.

auris utraque (each ear)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for au (1 of 2)

Au

The symbol for gold.

Scientific definitions for au (2 of 2)

AU

Abbreviation of astronomical unit
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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