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).
Passive immunity
Immunity produced by the transfer to one person of antibodies that were produced by another person. Protection from passive immunity diminishes in a relatively short time, usually a few weeks or months. For example, antibodies passed from…
Read the definitionRandom terms
Show more- M. marinum Mycobacterium marinum
- DT immunization DT (diphtheria and tetanus) vaccine does not protect from pertussis and is usually reserved for individuals…
- Bacterial prostatitis, acute Prostatitis, acute: Inflammation of the prostate gland of sudden (acute) onset due to bacterial infection…
- Lymph node The first lymph node ("gland") to receive lymphatic drainage from a tumor. Which lymph node is the sentinel…
- Erb paralysis See: Erb palsy
- Erythema chronicum migrans The classic initial rash of Lyme disease. In the early phase of the illness, within hours to weeks of the…
- PARK7 Familial Parkinson disease type 7
- ZIP code, protein An informal name for a molecular cell biology system of signals or 'address tags' that guide the movement of…
- Patellar ligament See: Patellar tendon
- Hyperaldosteronism Overproduction of the hormone aldosterone from the outer portion (cortex) of the adrenal gland or a tumor…
- Microscopic gallstones Gallstones: A mixture of microscopic particulate matter in bile, also called biliary sludge, that occurs when…
- Tattoos & permanent makeup The intradermal application of inks for the purpose of tattooing or permanent makeup (also known as…