NITPICKER
Meaning of NITPICKER in English
/nit"pik'euhr/ , n.
a person who nitpicks, esp. habitually.
Also, nit-picker .
[ 1950-55; NIT 1 + PICK 1 + -ER 1 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012