light echo

noun

A phenomenon caused by light reflected off surfaces distant from the source, and arriving at the observer with a delay relative to this distance, analogous to an echo of sound.

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Meanings

nounlight echo (plural light echos or light echoes)

plural light echos · plural light echoes

  1. astronomyA phenomenon caused by light reflected off surfaces distant from the source, and arriving at the observer with a delay relative to this distance, analogous to an echo of sound.

Translations

German Lichtecho
  • Lichtechophenomenon observed in astronomy
Cite this entry
APA

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

MLA

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

Chicago

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

Source: light echo on Wiktionary, CC BY-SA 4.0.