pedant
US /ˈped.ənt/
UK /ˈped.ənt/

1.
pedant, muggenzifter
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.
Hij is zo'n pedant, altijd iedereen's grammatica corrigerend.
•
The professor was known as a pedant for his strict adherence to obscure rules.
De professor stond bekend als een pedant vanwege zijn strikte naleving van obscure regels.