preprandial Syllabification: (pre·pran·di·al)Pronunciation: /prēˈprandēəl/Definition of preprandial adjective formal or humorous done or taken before dinner or lunch:a preprandial glass of sherry Medicine occurring or done before a meal. Origin: early 19th century: from pre- 'before' + Latin prandium 'a meal' + -alpreprandial in other Oxford dictionaries Definition of preprandial in the British & World English dictionary