OSI layer

noun

Any of the seven layers of abstraction in the OSI model of communications systems: application, presentation, session, transport, network, data link, or physical.

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Meanings

nounOSI layer (plural OSI layers)

plural OSI layers

  1. computingAny of the seven layers of abstraction in the OSI model of communications systems: application, presentation, session, transport, network, data link, or physical.
Cite this entry
APA

OSI layer. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/OSI%20layer

MLA

“OSI layer.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/OSI%20layer. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “OSI layer,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/OSI%20layer.

Source: OSI layer on Wiktionary, CC BY-SA 4.0.