Definition of Alvarez, Luis Walter in English:

Alvarez, Luis Walter

Line breaks: Luis Wal¦ter Al|varez
Pronunciation: /alˈvɑːrɛz
 
/
( 1911–88), American physicist. In 1980 Alvarez and his son identified iridium in sediment from the Cretaceous-Tertiary boundary and proposed that this resulted from a catastrophic meteorite impact that may have resulted in the extinction of the dinosaurs.

Definition of Alvarez, Luis Walter in:

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Word of the day internecine
Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict