enologist, fermentologist, oenologist - a specialist in wine making

expert - a person with special knowledge or ability who performs skillfully

attache - a specialist assigned to the staff of a diplomatic mission

canonist - a specialist in canon law

criminologist - a specialist in criminology

dietician, dietitian, nutritionist - a specialist in the study of nutrition

educationalist, educationist - a specialist in the theory of education

fingerprint expert, fingerprint man, fingerprint specialist - a specialist in identifying fingerprints

graphologist, handwriting expert - a specialist in inferring character from handwriting

decorator, designer, house decorator, interior decorator, interior designer, room decorator - a person who specializes in designing architectural interiors and their furnishings

limnologist - a specialist in the study of freshwater ponds and lakes

meteorologist - a specialist who studies processes in the earth's atmosphere that cause weather conditions

oculist, optometrist - a person skilled in testing for defects of vision in order to prescribe corrective glasses

orientalist - a specialist in oriental subjects

arborist, tree surgeon - a specialist in treating damaged trees