Word.ws English Dictionary

optical depth

optical depth noun: the natural logarithm of the ratio of amount of radiation that hits an object to the amount of radiation that emerges from that object on the other side.

Noun

optical depth (countable and uncountable, plural optical depths)

  1. The natural logarithm of the ratio of amount of radiation that hits an object to the amount of radiation that emerges from that object on the other side.
    • The previous attempt of direct observational detection, undertaken with the Hubble Space Telescope (HST) during the Mars equatorial plane crossing in May 2001, set an upper limit on the normal optical depth to #92;sim 3#92;times 10#123;-8#125; for the Phobos ring and #92;sim 10#123;-7#125; for the...2006 August, Alexander V. Krivov, Artem G. Feofilov, Valeri V. Dikarev, “Search for the putative dust belts of Mars: The late 2007 opportunity”, in Planetary and Space Science, volume 54, numbers...
    Synonyms:
    optical thickness

Synonyms of optical depth

  • optical thickness

Forms of optical depth

pluraloptical depths

Questions about optical depth

What does optical depth mean?
Optical depth means the natural logarithm of the ratio of amount of radiation that hits an object to the amount of radiation that emerges from that object on the other side.
What part of speech is optical depth?
Optical depth is a noun.
What is the plural of optical depth?
The plural of optical depth is optical depths.

Words near optical depth in the dictionary

  1. optical black holes
  2. optical character recognition
  3. optical coherence tomography
  4. optical delusion
  5. optical delusions
  6. optical depth
  7. optical disc
  8. optical disc drive
  9. optical disc drives
  10. optical discs
  11. optical disk

Source and license

Adapted from Wiktionary: optical depth (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.

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