expertat
nounUK /ˌekspɜːˈtæt/
US /ˌekspɜːrˈtæt/
An expertat is a person who knows a lot about one special thing.
The expertat fixed our computer in just five minutes.
RELATED WORDS
OTHER MEANINGS
2. A title given to someone who has passed a very hard test in a subject.
She became an expertat in marine biology after years of study.
3. A person others go to for advice about a topic.
Ask the expertat if you want to know which bike to buy.
4. Someone who is very good at a game or sport.
He is an expertat at chess and wins almost every match.