Medical Dictionaries

• Aetna InteliHealth:  Merriam-Webster Medical Dictionary
  featuring Harvard Medical School's Consumer Health Information
  

• MedBioWorld
  medical & bioscience dictionaries, glossaries & terminologies
  

• Medlineplus Medical Dictionary
  
  

Medical Encyclopedias

Medical Resources

• Library of Congress Reading Room
  
• Medscape
  
• Medlineplus
  
• PubMed - National Library of Medicine
  view research publication
  
• National Library of Medicine  USA