application protocol data unit

noun

A packet of data exchanged between two application programs across a network.

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Meanings

nounapplication protocol data unit (plural application protocol data units, abbreviation APDU)

plural application protocol data units · abbreviation APDU

  1. computingA packet of data exchanged between two application programs across a network.
Cite this entry
APA

application protocol data unit. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/application%20protocol%20data%20unit

MLA

“application protocol data unit.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/application%20protocol%20data%20unit. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “application protocol data unit,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/application%20protocol%20data%20unit.

Source: application protocol data unit on Wiktionary, CC BY-SA 4.0.