Mainly English Language, Some Multilingual
CHORUS - Collaborative Hypertext of Radiology
Award-winning quick reference hypertext for physicians and medical students. More than 1,100 documents describing diseases, radiological findings, differential-diagnosis lists and pertinent anatomy, pathology and physiology. Extremely detailed and easy to use, excellent for translating medical reports. English only.
Health Information Translations
Great site for healthcare interpreters! Searchable by language and keyword, contains thousands of documents explaining health topics and procedures to patients with text and diagrams on alternating pages, English and Arabic, Simplified or Traditional Chinese, French, Japanese, Korean, Russian and Spanish (plus a few more) with some audio and video files. Sponsored by medical centers in Ohio.
All kinds of medical information. Search for abbreviations, terms, drugs, codes, hospitals, trials, etc., all in English.
MedlinePlus Medical Encyclopedia
From the U.S. National Library of Medicine, includes over 4,000 articles about diseases, tests, symptoms, injuries and surgeries plus an extensive library of photographs and illustrations. English.
Merck Manuals Online in English
Medical reference books that cover a wide range of medical topics, including disorders, tests, diagnoses, and drugs. The Merck Manual Online is updated periodically with new information, and contains photographs, and audio and video material not present in the print versions.
Merriam-Webster's Medical Dictionary
Provided by MedlinePlus, includes text and images in English.
Stedman’s Medical Dictionary
Online version of Stedman’s dictionary, English only.
Medical Abbreviations Dictionary
Database of over 200,000 medical, biotech, pharma and healthcare acronyms and abbreviations from MediLexicon.
National Center for Complementary and Alternative Medicine
The U.S. Government's lead agency for scientific research on the diverse medical and health care systems, practices, and products that are not generally considered part of conventional medicine. Includes Topics A-Z, Herbs at a Glance, and much more.
Gray’s Anatomy of the Human Body
Features 1,247 vibrant engravings—many in color—from the classic 1918 publication, as well as a subject index with 13,000 entries ranging from the Antrum of Highmore to the Zonule of Zinn.
Dictionary of Dental Terms
Simple but thorough illustrated dictionary of dental and orthodontic terms in English.
Defines words related to diabetes, compiled by the National Diabetes Information Clearinghouse. Also available in Spanish.
Disease Management Project
Online medical reference providing treatment guidelines for the most commonly seen diseases and conditions. From the Cleveland Clinic Center for Continuing Education, updated in 2009.
Glossaries of HIV/AIDS Terms
A list of links to various HIV/AIDS-related glossaries from the University of California San Franciso Medical Center.
Genetics Home Reference
A guide to understanding genetic conditions from the National Library of Medicine, it contains extensive information on genetics, links, and a glossary of medical and genetics terms.
Talking Glossary of Genetic Terms
Created by the National Genome Research Institute (NHGRI) to help people without scientific backgrounds understand terms and concepts used in genetic research. Also available in Spanish.
Glossary of Terms and Symbols Used in Pharmacology
Detailed glossary in English from Boston University School of Medicine.
WHO Model Lists of Essential Medicines
Lists of essential medicines from the World Health organization available in Arabic, Chinese, English, French, Russian and Spanish.
Prescription & OTC Drug Databases
National drug databases from various countries in Arabic, French, German, Japanese, Korean, and Spanish. It now requires a membership.
The Merck Veterinary Manual
Searchable reference manual of animal health. English only.