nutritionist nutritionally • nutritious · · · Info · Definitions · Synonyms · Characters · · nutritionist · · Text Latin · · Script 12 · · Length Definitions · · · (noun) a specialist in the study of nutrition. Synonyms: dietician, dietitian. · · Noun Definition 1 Synonyms · · · dietician · · Synonym 1 dietitian · · Synonym 2 Characters · · i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075