Medical Dictionary is intended for use by healthcare consumers, students, and professionals as well as anyone who wants to keep up with the burgeoning array of terminology found in today’s medical news. By staying clear of jargon, the dictionary offers fast and concise information, whether the user is searching for a description of an over-the-counter or prescription medication, a medical abbreviation, a test procedure, a medical research topic, or an illness. Over 45,000 entries from all areas of medicine and healthcare are included.

Mayo Clinic offers award-winning medical and health information and tools for healthy living.

A comprehensive source for information about bipolar disorder, also known as manic depression. Bipolar disorder involves extreme mood swings. We have information for patients, professionals and loved ones of people who have bipolar disorder.

Homepage of Merck.com, Merck's corporate Web site

Find the Web's best health guides, medical reports, health news, and videos for any health topic.

Trusted medical information to encourage healthy living. Enjoy free health tools and view detailed doctor-reviewed information about diseases, medical symptoms, treatments, drugs, and nutrition.