MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Immunology
The study of all aspects of the immune system including its structure and function, disorders of the immune system, blood banking, immunization and organ transplantation.
Read the definitionRandom terms
Show more- Primary amebic meningoencephalitis A rare, but fatal infection of the central nervous system caused by Naegleria fowleri, an ameba that inhabits…
- Brain aneurysm Brain aneurysm: A brain aneurysm is a small outpouching (an aneurysm) that looks like a berry and classically…
- Magnetic resonance spectroscopic imaging (MRSI) A noninvasive imaging method that provides information about cellular activity (metabolic…
- PSA See: Primary sclerosing cholangitis.
- Hepatic artery See: Liver biopsy.
- Amini Amini, Fariborz
- Hematopoiesis The production of all types of blood cells generated by a remarkable self-regulated system that is responsive…
- Occipital bone The bone that forms the rear and the rear bottom of the skull. The occipital bone encloses a large oval hole…
- Bid (on prescription) Seen on a prescription, bid means twice (two times) a day. It is an abbreviation for 'bis in die' which in…
- Menstrual irregularity The normal menstrual cycle is about four weeks long, and often follows the phases of the moon. Its length…
- Gene, suicide A gene whose expression in a cell is lethal for that cell. Suicide genes form the basis of a strategy for…
- Meniscus injury Injuries to the crescent-shaped cartilage pads between the two joints formed by the femur (the thigh bone)…