There are many sources available online for medical definitions but one of the best is the nationally recognized MedicineNet.
MedicineNet's MedTerms website provides a vast array of medical information for consumers in plain speak. The nicest feature of this site is that it is user-friendly. You can switch dictionary categories by simply clicking on a different category tab. The categories for the various dictionaries are: Diseases and Conditions, Symptoms and Signs, Procedures and Tests, Medications, and MedTerm Dictionary for medical definitions.
MedicineNet also has many clickable links to on-site information for common diseases and medical conditions with information presented in FAQ-like articles. Also available is a handy medications guide in .pdf format that lists many of the most popular medications, their generic and brand names, and their use and side effects. In addition MedicineNet's Daily Editors' Health News Picks, and Doctor's Update will keep you abreast of the latest news and information in the healthcare fields.
MedicineNet, Inc. was established in 1996 and is fueled by a staff of highly accomplished medical professionals whose goal is to provide the most comprehensive, current and relevant medical definitions and healthcare information available. The information on MedicineNet is "100% Doctor-Produced" by over 70 U.S. Board Certified Physicians. In fact the doctors at MedicineNet have authored the first and second editions of Webster's New World Medical Dictionary, January 2003. Needless to say, this is a trusted source for medical definitions.
Another invaluable site is the non-profit HealthDigest which acts as a clearing house for a whole plethora of healthcare information. Just scroll down the homepage to check out the topics available. Clicking on Medical Terminology from here will take you to a page of links to over 30 online medical dictionaries which include innumerable medical definitions; some specialize in areas like diabetes, immunology, drug-trade terms and even holistic terminology. Click on their News And Articles button for the latest word in healthcare, or try their Site Map button then scroll down to a complete drug database from A-Z. The information in this drug database is among the most comprehensive of any online medications database.
If you are about to have surgery or are considering it, AnswerMed might be another site you'd like to check out for medical definitions. It provides information about common medical procedures and illnesses in a very user-friendly format. For example, entering the keyword, angina provides a solid layman's definition with clickable buttons to go to related information like symptoms, diagnosis, treatments, complications, alternatives, and more.
With these sites bookmarked in your Web browser you will never be at a loss for medical definitions again.