mass extinction

Noun

 * 1)  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.

Translations

 * Catalan: extinció massiva
 * Finnish:
 * French: extinction massive
 * German:
 * Hungarian: tömeges kihalás
 * Irish: olldíothú
 * Italian: estinzione di massa
 * Portuguese: extinção em massa
 * Russian: ма́ссовое вымира́ние
 * Spanish: extinción masiva
 * Swedish:, massdöd
 * Ukrainian: ма́сове вимира́ння