ATN
Translingual
Symbol
ATN
- (international standards, obsolete) Former ISO 3166-1 alpha-3 country code for Queen Maud Land from 1974 to 1983.
- Synonym: NQ (alpha-2)
Usage notes
The code was deprecated in favour of ATA, the code for Antarctica.
English
Noun
ATN (uncountable)
- (medicine) Initialism of acute tubular necrosis.