middlebox

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noun

A device in the Internet that provides transport policy enforcement, such as a firewall.

UncommonScrabble 22
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Meanings

nounmiddlebox (plural middleboxes)

plural middleboxes

  1. InternetcomputingA device in the Internet that provides transport policy enforcement, such as a firewall.

Origin

From middle + box.

Full word history & related roots →
Cite this entry
APA

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

MLA

“middlebox.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/middlebox. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “middlebox,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/middlebox.

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