411 REFERENCE · Wiktionary
100-year flood
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
thumb|A 100-year flood of the Mississippi River in Illinois, in 1993.
100-year flood
A flood event that has a 1% probability of occurring in any given year; an exceptionally large flood.
Translations
extreme flood with a 1% annual chance of occurring
German: de Jahrhundertflut f, de Jahrhunderthochwasser n