L3

noun

The third-level cache of a processor, farther away from the processor than the second-level cache.

“an L3 switch”

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Meanings

L31

noun
  1. abbreviationastrophysicsAbbreviation of Lagrange point 3, located 180 degrees away from the smaller object and slightly outside the smaller object's orbit around the larger object.

L32

nounL3 (uncountable)
  1. Short for third level in various contexts
    1. uncountablecomputingThe third-level cache of a processor, farther away from the processor than the second-level cache.
    2. uncountablecomputingThe network layer in the seven-layer OSI network model.

      an L3 switch

Origin

From Level 3.

Full word history & related roots →
Cite this entry
APA

L3. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/L3

MLA

“L3.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/L3. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “L3,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/L3.

Source: L3 on Wiktionary, CC BY-SA 4.0.