Urubupunga

[jmccrae]

Synset
oewn-09490895-n (Interlingual Index: i86375)
(n) Urubupunga, Urubupunga Falls a waterfall in the Parana river in Brazil

oewn-09453320-n (Interlingual Index: i86159)
(n) Guaira, Guaira Falls, Sete Quedas a great waterfall on the border between Brazil and Paraguay

New definition
a former waterfall on the Parana river in Brazil; now impounded by the Engineer Souza Dias Dam and the Ilha Solteira Dam

a former waterfall on the border between Brazil and Paraguay; now impounded by the Itaipu Dam

Motivation
This took me a long time to discover what 'Urubupunga' refers to. Googling only seems to show a bus-stop in Sao Paulo.

I eventually found this source:
https://www.google.ie/books/edition/Survey_of_the_Brazilian_Economy/0gQpMyluTaMC?hl=en&gbpv=1&dq=Urubupunga&pg=RA1-PA170&printsec=frontcover

Which says:

CELUSA (Centrais Eletricas de Urubupungá) created in 1961 to harness the Urubupungá falls through the construction of two large plants: Jupiá [... and...] Ilha Solteira

Jupiá was since renamed to Engineer Souza Dias

The second case is described in Wikipedia

We should also add accents to the relevant terms.