Definify.com
Webster 1913 Edition
Punctuator
Punc′tu-aˊtor
,Noun.
 One who punctuates, as in writing; specifically, a punctator. 
Definition 2025
punctuator
punctuator
English
Noun
punctuator (plural punctuators)
-  One who punctuates, as in writing.
- He was a sloppy punctuator, often leaving out commas and confusing colons with semicolons.