pedant
US /ˈped.ənt/
UK /ˈped.ənt/

1.
pedante, meticuloso
a person who is excessively concerned with minor details and rules or with displaying academic learning
:
•
He's such a pedant, always correcting everyone's grammar.
Ele é um pedante, sempre corrigindo a gramática de todo mundo.
•
The professor was known as a pedant for his strict adherence to obscure rules.
O professor era conhecido como um pedante por sua estrita adesão a regras obscuras.