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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.
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Get definitions and pronunciations for 5,285 medical words...
- Spondylosis Definition & Meaning
Spondylosis Definition & Meaning - Medical Dictionary -...
- ESR Definition & Meaning
What does the abbreviation ESR stand for? Meaning:...
- Myoedema Medical Definition
: the formation of a lump in a muscle when struck a slight...
- Myoblastoma
a tumor that is composed of cells resembling primitive...
- Compression Fracture Definition & Meaning
fracture (as of a vertebra) caused by compression of one...
- Malacia
abnormal softening of a tissue —often used in combination…...
- Spondylolisthesis
The meaning of SPONDYLOLISTHESIS is forward displacement of...
- ITIS Definition & Meaning
ITIS Definition & Meaning - Medical Dictionary -...
- Rhinorrhea
Rhinorrhea - Medical Dictionary - Merriam-Webster
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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.
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OpenMD's medical dictionary aggregates definitions from leading medical institutions and includes illustrations, phonetic pronunciations, and related terms.
- Basic Term Structure
- Word Roots
- Prefixes
- Suffixes
Medical terms are composed of these standard word parts: 1. Prefix:When included, the prefix appears at the beginning of a medical term and usually indicates a location, direction, type, quality, or quantity. 2. Root:The root gives a term its essential meaning. Nearly all medical terms contain at least one root. When a prefix is absent, the term be...
A root is the foundational element of any medical term. Roots often indicate a body part or system. Common word roots: Compound Words A medical word may include multiple roots. This frequently occurs when referencing more than one body part or system. For example, cardio-pulmo-nary means pertaining to the heart and lungs; gastro-entero-logy means t...
A prefix modifies the meaning of the word root. It may indicate a location, type, quality, body category, or quantity. Prefixes are optional and do not appear in all medical terms. Common prefixes:
Medical terms always end with a suffix.3The suffix usually indicates a specialty, test, procedure, function, condition/disorder, or status. For example, “itis” means inflammation and “ectomy” means removal. Alternatively, the suffix may simply make the word a noun or adjective. For example, the endings -a, -e, -um, and -us are commonly used to crea...
noun. a specialized dictionary covering terms used in the health professions by doctors, nurses, and others involved in healthcare services. Discover More. Word History and Origins. Origin of medical dictionary 1. First recorded in 1730–40. Discover More. Example Sentences.
1. : of, relating to, or concerned with physicians or the practice of medicine. the medical profession. a medical journal. 2. : requiring or devoted to medical treatment. a medical problem. an important advance in medical science. medically. ˈme-di-k (ə-)lē. adverb. Examples of medical in a Sentence. He has a dangerous medical condition.
Our doctors define difficult medical language in easy-to-understand explanations of over 19,000 medical terms. Medical Term online medical dictionary provides quick access to hard-to-spell and often misspelled medical definitions through an extensive alphabetical listing.
