This is the 2228th most frequent Portuguese word.
semanal
Weekly.
In this sentence, 'semanal' modifies 'artigo' to indicate its occurrence once a week.
Eu leio um artigo semanal sobre ciência.
I read a weekly article about science.
Here, 'semanal' qualifies 'edição,' specifying that it is published every week.
O jornal tem uma edição semanal.
The newspaper has a weekly edition.
In this context, 'semanal' describes 'reunião' to convey its regularity on a weekly basis.