loopback

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noun

The routing of a signal, data stream, etc. from its origin back to the origin, primarily as a means of testing the transmission or transportation infrastructure.

Less commonScrabble 18
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Meanings

nounloopback (countable and uncountable, plural loopbacks)

plural loopbacks

  1. countableuncountableThe routing of a signal, data stream, etc. from its origin back to the origin, primarily as a means of testing the transmission or transportation infrastructure.

Origin

From loop + back.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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