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).
Premature birth
A birth that takes place before 37 weeks of gestation have passed. Historically, the definition of prematurity was 2500 grams (about 5 1/2 pounds) or less at birth. The current World Health Organization definition of prematurity is a baby…
Read the definitionRandom terms
Show more- Contusion Another name for a bruise. What is a bruise ? A bruise, or contusion, is caused when blood vessels are…
- Phenocopy 1. An environmental condition that imitates (copies) one produced by a gene. 2.The person who has an…
- Nephropathy Any kidney disease. For example, there is diabetic nephropathy, gouty nephropathy, HIV-associated…
- Antivenin Antibodies created in the blood of a horse or sheep when the animal is injected with snake venom. Antivenin…
- Disease, Bowen's N early stage of skin cancer. Bowen disease is medically the same as 'squamous cell carcinoma in situ.'…
- Plague Plague: The plague is an infectious disease due to a bacteria called Yersinia pestis. Y. pestis mainly…
- Universal donor A person who is type O in the ABO blood group system and can donate blood to all recipients
- Study, crossover A type of clinical trial in which the study subjects receive each treatment in a random order. In this type…
- Genetics of Parkinson disease See: Forensic genetics.
- Teratoma, ovarian Also called a dermoid cyst of the ovary, this is a bizarre tumor, usually benign, in the ovary that typically…
- Systole, extra See: Extrasystole
- Insertable loop recorder See: Patient-activated cardiac event recorder