Pronunciation: /mæs ɪkˈstɪŋkʃən/
noun a widespread and rapid decrease in the biodiversity on Earth, often caused by catastrophic events
A1 A mass extinction is when many different species of animals and plants die out at the same time.
A2 The dinosaurs became extinct during a mass extinction event millions of years ago.
B1 Scientists believe that human activities are causing a mass extinction of various species around the world.
B2 The effects of a mass extinction can have long-lasting impacts on the environment and ecosystems.
C1 The sixth mass extinction in Earth's history is currently happening due to human-induced changes in the environment.
C2 Researchers are studying past mass extinction events to better understand the factors that lead to such catastrophic loss of biodiversity.
formal The mass extinction event wiped out a large percentage of the Earth's species.
informal Dude, did you know about the mass extinction that happened millions of years ago?
slang That mass extinction was like the ultimate wipeout for the dinosaurs.
figurative The economic recession caused a mass extinction of small businesses in the area.
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