Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Nurses, doctors, etcHippocratic oathHip‧po‧crat‧ic oath /ˌhɪpəkrætɪk ˈəʊθ $ -ˈoʊθ/ noun [singular] MNthe promise made by doctors that they will obey the principles of the medical profession ldoceonline.com