I. ˈdī-ə-ˌter-ē, -ˌte-rē noun
( plural di·e·tar·ies )
Date: 1838
: the kinds and amounts of food available to or eaten by an individual, group, or population
II. adjective
Date: 1614
: of or relating to a diet or to the rules of a diet
dietary guidelines
• di·e·tar·i·ly ˌdī-ə-ˈter-ə-lē, -ˈte-rə- adverb