Definition of jetteau in English:

jetteau

Pronunciation /ˈdʒɛtəʊ/

noun

historical, rare
  • An ornamental jet of water emitted under pressure from a fountain or pipe.

Origin

Early 18th century; earliest use found in Joseph Addison (1672–1719), writer and politician. Alteration of jet d'eau, by association with jetto or its etymon Italian getto.