Definition of Au

1. 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.

Exact synonyms: Atomic Number 79, Gold
Substance meronyms: Gold Foil, Gold Leaf, Gold, Dental Gold, Graphic Tellurium, Sylvanite
Generic synonyms: Noble Metal
Specialized synonyms: 24-karat Gold, Pure Gold, Gold Dust, Green Gold, Guinea Gold
Derivative terms: Gold



2. 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).
Exact synonyms: Astronomical Unit
Generic synonyms: Astronomy Unit

Definition of Au

1. Noun. (astronomy) (initialism of astronomical unit) ¹

2. Noun. (initialism of angstrom unit) ¹

3. Noun. (context: fandom) (initialism of alternate universe) ¹

4. Proper noun. (initialism of African Union) ¹

¹ Source: wiktionary.com

Medical Definition of Au

1. Symbol for gold (aurum). (05 Mar 2000)

Au Pictures

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Lexicographical Neighbors of Au

Atticizing
Atticus
Atticus Finch
Atticus Finches
Atticus atlas
Attila
Attila the Hun
Attlee
Attorney General
Attorney General of the United States
Attri
Atty
Atwood
Atwoodian
Atzera
Au
Au.D.
Au antigen
Aub-DuBois table
Aube
Auberon
Aubert's phenomenon
Aubrey
Auburn system
Auch
Auchincloss
Auchmeromyia
Auchmeromyia luteola
Auckland
Aucklander

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