au
|au|
B2
/ɔː/
gold, astronomical unit
Etymology
Etymology Information
'Au' originates from Latin, specifically the word 'aurum,' where 'aur-' meant 'gold.'
Historical Evolution
'Aurum' transformed into the modern chemical symbol 'Au' used in the periodic table.
Meaning Changes
Initially, it meant 'gold,' and this meaning has remained the same in modern usage.
Meanings by Part of Speech
Noun 1
a chemical symbol for gold.
The element Au is known for its high value and conductivity.
Synonyms
Noun 2
astronomical unit, a unit of length used in astronomy.
The distance from the Earth to the Sun is approximately 1 AU.
Synonyms
Last updated: 2025/07/09 06:41