All 3 Uses

pedantic
in
Anne Frank, the Diary of a Young Girl - Definitive Edition
(Edited)

Anyone who's so petty and pedantic at the age of fifty-four was born that way and is never going to change.
p. 120.5

pedantic = with excessive concern for formal rules, details, or book learning
before you know it, it'll be 4 P.M. and the pedantic Dr. Dussel will be standing with the clock in his hand because I'm one minute late clearing off the table.
p. 133.4 *

pedantic = too concerned with formal rules and details
Stripping pods is a precise and meticulous job that might be suited to pedantic dentists or finicky spice experts, but it's a horror for an impatient teenager like me.
p. 353.7

pedantic = with excessive concern for details

Definitions:

(1) (pedantic)
too concerned with formal rules, details, or book learning
(2) (meaning too rare to warrant focus)
In historic literature, you may see pedant used as a synonym for school teacher.