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Extinctions Definition

(noun)
definitions

the fact or process of a species, family, or other group of animals or plants becoming extinct


examples

preventing the extinction of this unique frog will require the restoration of ponds and surrounding habitats

the extinction of the great auk

mass extinctions

(noun)
definitions

reduction to zero in the intensity of light or other radiation as it passes through a medium, due to absorption, reflection, or scattering


examples

ultraviolet extinction

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