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By avoiding jargon, the dictionary offers concise and easily accessible information for users searching for descriptions of over-the-counter or prescription medications, medical abbreviations, test procedures, medical research topics, or illnesses.
- Dictionary / Thesaurus
Dictionary, Thesaurus, and Translations. The main source of...
- Medication
medication [med″ĭ-ka´shun] 1. administration of remedies. 2....
- Drug
drug (drŭg), 1. Therapeutic agent; any substance, other than...
- Psoriasis
Psoriasis Definition Named for the Greek word psōra meaning...
- Dictionary / Thesaurus
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. Authoritative pronunciations.
Over 110,000 medical, pharmaceutical, and bioscience terms. 60,000+ audio pronunciations and video clips. Built-in spellchecker that enables fast and easy editing and reviewing, saving valuable time. User customization to optimize comprehension and usage, tailoring the dictionary to users' needs.
OpenMD's medical dictionary aggregates definitions from leading medical institutions and includes illustrations, phonetic pronunciations, and related terms.
Don't know what a medical or health word means? Find out by clicking through our dictionary pages for jargon-free explanations to hundreds of words.
1. Contact of a compound with an epithelial barrier such as the skin, eyes, respiratory tract, or gastrointestinal tract before absorption occurs. See also: exposed dose, external dose. 2. Physical effects caused by harsh weather.
This compilation gives plain-language descriptions of medical terms commonly used in information about medicines. Communication specialists at EMA use these descriptions for materials prepared for the public.