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.
- Alvarez quintero
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.
Corrado [kawr-rah-daw] /kɔrˈrɑ dɔ/ (Show IPA), c1890–1956, Italian journalist and novelist. Contemporary Examples Instead, the loudest voices come from the ever-tweeting ex-president, Alvaro Uribe, and his supporters. Kevin Scott Sutay: Swallowed by the Jungle Toby Muse July 24, 2013 Historical Examples The door of the room presently opened and Alvaro Luna came in. Froth Armando […]
having the vaulted shape of a beehive.
variant of before a vowel: alveolectomy.