pororoca
English
Etymology
From a Tupian word meaning great destructive noise.
Noun
pororoca (plural pororocas)
- A tidal flood especially at the mouth of the Amazon River that regularly or occasionally rushes with a roaring noise into the river and proceeds in one or more waves that often present a very abrupt front of considerable height.
Alternative forms
- piroróco (obsolete)
Related terms
- tidal bore