vis medicatrix naturaePronunciation: /vɪs mɛdɪˌkeɪtrɪks ˈnatʃərʌɪ/Definition of vis medicatrix naturae noun [mass noun] the body’s natural ability to heal itself. Origin:Latin, 'the healing power of nature'vis medicatrix naturae in other Oxford dictionaries Definition of vis medicatrix naturae in the US English dictionary