Top Online Medical Dictionaries: Definitions & Resources

Reputable free online medical dictionaries:

  1. Merriam-Webster Medical Dictionary – clear definitions, audio pronunciation, illustrations. merriam-webster.com/medical
  2. MedlinePlus Medical Encyclopedia – NIH/NLM; peer-reviewed articles, multilingual, patient-friendly. medlineplus.gov/ency
  3. Oxford Medical Dictionary – authoritative, concise definitions. oxfordmedicaldictionary.com
  4. Stedman's Medical Dictionary – comprehensive, includes etymologies; subscription for full access. stedmansonline.com
  5. Dorland's Illustrated Medical Dictionary – classic reference, detailed entries; subscription. dorlands.com

For clinical decision-making, also consult UpToDate, DynaMed, or ClinicalKey (institutional access).

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