optical depth

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|physics}} 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.

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