IPA: /ˈsmætərər/
KK: /ˈsmætərər/
A person who has a superficial or limited knowledge of many subjects, often dabbling in various topics without deep understanding.
He is a smatterer of many subjects, but he lacks expertise in any one area.
Smatterer is formed from "smatter" (from the dialectal English "smatter", meaning to speak superficially or to dabble) and the suffix "-er" (meaning a person who). A smatterer is a person who speaks or knows a little about many subjects, often superficially.
Think of someone who 'dabbles' in many topics but doesn't go deep — that's what a smatterer does.