Welcome to the Medical Dictionary Online powered by MegaLexica!
Free Online Medical Dictionary
Medical Dictionary. Popular Medical Dictionary Searches: Ibuprofen Aspirin Dementia Fibrosis Headache Mesothelioma Migraine A B C D E F G H I J K. Medical terms are from MedTerms™ and are written by pharmacists and U.S. Board Certified Physicians; the same authors of the Webster's New World™ Medical Dictionary. To use the medical dictionary, type in your word in the dictionary search box below and click search. You can also browse the terms by selecting on a letter. The dictionary has also been expanded in many areas, with particular attention paid to pharmacology, obstetrics and gynaecology, paediatrics, ethics, nephrology, and psychiatry. Selling over a million copies in previous editions, this is an indispensable reference guide for students, as well as those working in the medical and allied professions.