noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Initialism of Pacific decadal oscillationa, recurring pattern of ocean-atmosphere climate variability. abbreviation, alt-of, countable, initialism, uncountable
2. 2
   Initialism of protected designation of origin, a geographical indication for food-related products in Europe. European-Union, abbreviation, alt-of, countable, initialism, uncountable
3. 3
   Initialism of physical device object. abbreviation, alt-of, countable, initialism, uncountable
4. 4
   Initialism of persistent data object (“a data object not lost when the application exits”). abbreviation, alt-of, countable, initialism, uncountable
5. 5
   Initialism of persistent domain object (“a domain object not lost when the application exits”). abbreviation, alt-of, countable, initialism, uncountable

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6. 6
   Initialism of PHP data object, a PHP extension to be used as a database abstraction layer. abbreviation, alt-of, countable, initialism, uncountable
7. 7
   Initialism of Python data object. abbreviation, alt-of, countable, initialism, uncountable

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.