light echo

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|astronomy}} A [[phenomenon]] caused by [[light]] [[reflect]]ed off [[surface]]s distant from the [[source]], and arriving at the [[observer]] with a [[delay]] [[relative]] to this distance, analogous to an echo of sound.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.