We found 3 dictionaries that define the word mass extinctions:

General (3 matching dictionaries)

1. mass extinctions: Merriam-Webster
2. mass extinctions: Wiktionary
3. Mass extinctions: Wikipedia, the Free Encyclopedia

▸ Words similar to mass extinctions ▸ Usage examples for mass extinctions ▸ Idioms related to mass extinctions ▸ Wikipedia articles (New!) ▸ Words that often appear near mass extinctions ▸ Rhymes of mass extinctions ▸ Invented words related to mass extinctions