Definition of First do no harm
First do no harm: Slogan used in medicine often in the Latin wording "primum non nocere," a fundamental medical precept of Hippocrates (ca. 460-ca. 377 B.C).
Last Editorial Review: 4/27/2011 5:27:15 PM
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?
Get the latest health and medical information delivered direct to your inbox FREE!