cambrian explosion

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Proper noun

1. {{lb|en|evolutionary|_|biology}} The relatively [[rapid]] appearance, during the [[Cambrian]] [[period|Period]] around 541 million years ago, of most major [[animal]] [[phylum|phyla]], as demonstrated in the [[fossil record]].

Noun

1. {{lb|en|by extension}} The [[rapid]] [[appearance]] of anything.

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