Word.ws English Dictionary

lookback time

lookback time noun: the amount of time elapsed between the moment that light is detected on Earth and the moment it was originally emitted by the source.

Noun

lookback time

  1. The amount of time elapsed between the moment that light is detected on Earth and the moment it was originally emitted by the source.

Questions about lookback time

What does lookback time mean?
Lookback time means the amount of time elapsed between the moment that light is detected on Earth and the moment it was originally emitted by the source.
What part of speech is lookback time?
Lookback time is a noun.

Words near lookback time in the dictionary

  1. lookaside
  2. lookasides
  3. lookatcha
  4. lookatchu
  5. lookback
  6. lookback time
  7. lookbacks
  8. lookbehind
  9. lookbehinds
  10. lookbook
  11. lookbooked

Source and license

Adapted from Wiktionary: lookback time (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “lookback time.” Word.ws, https://word.ws/lookback_time. Based on Wiktionary, CC BY-SA 4.0.