A cloudologist, or a meteorologist.
Call in an expert to fix it.
expert opinions about matter and energy
Novice learner is a person who is new to a field or activity. Expert learner is a person who is simply an expert, experienced, well informed in that field or activity.
Engineer/Technician
Horologist
The only sure way to tell if your Michael Kors watch is fake is to take it to a watch expert. Call local jewelers or watch stores to see if there is anyone in your area who can take a look at the watch.
Expert, Knowledgeable, etc..
pullicologist
An expert at table talk is called a deipnosophist.
A mathematician.
A language expert is called a linguist. Linguists study the nature of language, its structure, and its use in communication within a specific cultural context.
Toxicologist.
Horologist
You need to get it to a watch expert to fix it. A good watch that is running slow needs an expert to work on it to fix the problem. In today's world where people do not have a real watch and expect like a computer or cell phone , the owner can do something to change how it works. A good watch is a finely crafted machine. If it is running fast an expert has to work on it to get it back in good working order.
A biologist
ethnologist ethnologist