Search medical terms and abbreviations with the most up-to-date and comprehensive medical dictionary from the reference experts at Merriam-Webster. Master today's medical vocabulary.

By avoiding jargon, the dictionary offers concise and easily accessible information for users searching for descriptions of over-the-counter or prescription medications, medical …

OpenMD's medical dictionary aggregates definitions from leading medical institutions and includes illustrations, phonetic pronunciations, and related terms.

Use this free online medical dictionary search engine to research and learn about medical terminology, pharmaceutical drugs, healthcare equipment, health conditions, medical devices, …

advance care directive (or advance medical directive): A legal document that describes the kind of medical care a person want if an accident or illness leaves him or her unable to make or …

Oct 20, 2025 · This best-selling and market-leading dictionary contains over 12,000 clear and concise entries, covering all aspects of medical science. Written by a team of medical experts, …

Medical Dictionary is a free resource to look up medical terms. Trademarks belong to their respective owners. Copyright 1999 - 2025 Medical Dictionary Inc. All Rights Reserved. Privacy …

More than 36,000 entries, a 32-page set of high-quality anatomical plates, and 257 full-color illustrations put dependable medical information at your fingertips.

The latest edition of Taber’s Medical Dictionary Online provides more than 75,000 definitions, 33,700 audio pronunciations, 1,300 images, and 130 videos. Add mobile access to download …

Master medical terminology with Stedman's Online Medical Dictionary: 110,000+ terms, audio pronunciations, and customizable features for students and professionals.