Au

1 of 3

abbreviation (1)

author

Au

2 of 3

symbol

gold

AU

3 of 3

abbreviation (2)

1
angstrom unit
2
astronomical unit
3
[Latin aures unitas] both ears
—used especially in audiology and in writing prescriptions

Word History

Etymology

Symbol

Latin aurum

Dictionary Entries Near Au

atypical

Au

AU

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Cite this Entry

“Au.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Au. Accessed 28 Nov. 2024.

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Medical Definition

Au

1 of 2 symbol
gold

AU

2 of 2 abbreviation
1
angstrom unit
2
antitoxin unit
3
[Latin aures unitas] both ears
—used especially in audiology and in writing prescriptions
Etymology

Symbol

L aurum

More from Merriam-Webster on Au

Britannica.com: Encyclopedia article about Au

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