Oenology is the science and study of all kinds of wines in the world.It is the study of all aspects of wine from harvesting of grapes to bottling of wines.The word is derived from the Greek word oenos which means wine and logy means study.An expert in the field of oenology is known as oenologist.A wine maker can also be known as oenologist.This is not related to the tasting of wine-it's only the study of wine production.