Here is the collection of medical dictionary and encyclopedie resource links.
Medical Dictionary and Encylopedia Resources(medical writing > medical dictionaries)
A glossary of Allergic Disease, Allergic Disorders and Allergic Illness terms.
An online glossary of biotech terminology.
Dorland's Medical Dictionary
You can search by term or partial term or use the A-Z browse option.
Harvard Medical Dictionary of Health Terms
A handy glossary of health terms that can be browsed alphabetically.
Medical Dictionary by Farlex
A medical dictionary provided by The Free Dictionary website.
The glossary was created to help users understand terminology commonly used by doctors, nurses, and other medical staff in U.S. hospitals and clinics.
A free online medical dictionary powered by Stedman's. It contains over 100,000 medical terms.
The A.D.A.M. Medical Encyclopedia includes over 4,000 articles about diseases, tests, symptoms, injuries, and surgeries.
MegaLexica is a free online medical dictionary search engine. It includes a medical glossary that can be browsed from A-Z.
Stat Ref lets you cross-search 25 medical and drug texts including Stedman's Medical Dictionary and texts from McGraw Hill, Mosby, Lippincott, Williams & Wilkins and others. Subscription fee.
Taber's Medical Dictionary
Taber’s Medical Dictionary Online provides more than 65,000 definitions, 32,000 audio pronunciations, 1,200 images, and 120 videos.
WebMD Medical Dictionary
WebMD provides this online dictionary which lets you browse for medical terms from A-Z.