MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Antagonist
In biochemistry, an antagonist acts against and blocks an action. For example, insulin lowers the level of glucose (sugar) in the blood, whereas another hormone called glucagon raises it; therefore, insulin and glucagon are antagonists. An…
Read the definitionRandom terms
Show more- Muscle, subscapularis >The subscapularis muscle; >The supraspinatus muscle, which is responsible for elevating the arm and moving…
- Vasomotor rhinitis Inflammation of the nose (rhinitis) due to abnormal neuronal (nerve) control of the blood vessels in the…
- DSM Abbreviation for the 'Diagnostic and Statistical Manual of Mental Disorders,' a comprehensive classification…
- Cytotoxic T-lymphocyte A T cell that is antigen-specific and is able to search out and kill specific types of virus-infected cells…
- Venom A poison, particularly one secreted by an animal. For examples, bee venom, snake venom, scorpion venom, and…
- BIA Bioelectric impedance analysis
- Voiding cystourethrogram A test done to examine the bladder and urethra while the bladder fills and empties. A radiopaque liquid (that…
- ErbB See: EGFR
- Rubeola (measles) Rubeola is the ordinary measles, an acute highly contagious viral disease with fever, runny nose, cough, red…
- Gamma hydroxybutyrate (GHB) Known in Europe as Gamma-OH, gamma hydroxybutyrate is a colorless and odorless drug used illicitly for…
- Hamstring The prominent tendons at the back of the knee. They are the sidewalls of the hollow behind the knee. (This…
- Multifocal Having to do with two or more foci or arising from two or more places. For example, aortic aneurysm disease…