a person who is unnecessarily concerned with detail, esp in the presentation or use of knowledge
this dried-up pedant, this elaborator of small explanations about as important as the surplus stock of false antiquities kept in a vendor's back chamber — George Eliot
pedantic /piʹdantik/ adj
pedantically /piʹdantikli/ adv
pedantry noun
[early French pedant from Italian pedante]