Alvarez hypothesis
alvarez hypothesis
Alvarez hypothesis [(al-vuh-rez)]
The theory that the mass extinction that involved the dinosaurs and many other living things was caused by the impact of a large asteroid on the Earth sixty-five million years ago.
Note: The hypothesis is named after the father-and-son team of scientists Luis and Walter Alvarez, who first suggested it.
Note: Evidence indicates that the asteroid fell in the Yucatan peninsula.
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Joaquín [hwah-keen] /ʰwɑˈkin/ (Show IPA), 1873–1944, and his brother Serafín [se-rah-feen] /ˌsɛ rɑˈfin/ (Show IPA) 1871–1938, Spanish dramatists and coauthors.
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having the vaulted shape of a beehive.
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variant of before a vowel: alveolectomy.
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a small cavity, cell, or pit on the surface of an organ. an alveolus.