What does "dietitian" mean?

A person who studies or practices dietetics.

How do you pronounce "dietitian"?

Pronounced //daɪəˈtɪʃən//.

Common synonyms include: dietician, attendant, dieticians, dietitians, nutrition professional, nutritionist.

/daɪəˈtɪʃən/ noun

noun ·Rare ·Advanced level

Noun

1
A person who studies or practices dietetics.
"The dietitian works with the client to develop meal planning that meets the client's needs based on healthy food choices."
2
a specialist in the study of diet and nutrition wordnet

"My baby's wet nurse is also my family's dietitian."

Irregular spelling of diet + -ician, probably influenced by dietetic.