Word.ws English Dictionary

mass extinctions

mass extinctions is the plural of mass extinction.

Meaning of mass extinction

Noun

mass extinction (countable and uncountable, plural mass extinctions)

  1. (evolutionary theory) A sharp decrease in the total number of species in a relatively short period of time; specifically, a loss of ∼75% of all species on the planet over a geologically interval of less than 3 million years, as a result of a mass extinction event.
    • Preceded by five other mass extinctions and many more small extinction events, the mass extinction currently underway is, on the one hand, like all the others in that it is nothing other than a significant reduction in the number of individual organisms inhabiting the planet and at the same time a...2020, Jonathan Elmore, editor, Fiction and the Sixth Mass Extinction, Rowman & Littlefield, →ISBN, page 4

Questions about mass extinctions

What is mass extinctions the plural of?
Mass extinctions is the plural of mass extinction.

Words near mass extinctions in the dictionary

  1. mass energies
  2. mass energy
  3. mass extinction
  4. mass extinction event
  5. mass extinction events
  6. mass extinctions
  7. mass favourite
  8. mass finishing
  9. mass finishings
  10. mass flow
  11. mass flows

Source and license

Adapted from Wiktionary: mass extinctions (page history and authors); mass extinction (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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