This is the 5648th most frequent Portuguese word.
aedes
A genus of mosquitoes, some species of which transmit diseases like dengue and yellow fever.
Here, 'Aedes' is used as a proper noun referring to the genus of the mosquito.
O Aedes aegypti é o mosquito responsável pela transmissão da dengue.
The Aedes aegypti is the mosquito responsible for the transmission of dengue.
In this sentence, 'Aedes' is also used as a proper noun referring generally to mosquitoes of this genus.
Nós precisamos combater o Aedes para evitar epidemias.
We need to combat the Aedes to avoid epidemics.
'Aedes' is used again as a proper noun, referring specifically to the genus in scientific contexts.