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).
T cell
A type of white blood cell that is of key importance to the immune system and is at the core of adaptive immunity, the system that tailors the body's immune response to specific pathogens. The T cells are like soldiers who search out and…
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Show more- Intra-arterial pressure The pressure of the blood within an artery, the arterial pressure. Also called the arterial tension
- Eye The organ of sight. The eye has a number of components. These components include but are not limited to the…
- Sinus bradycardia A regular but unusually slow heart beat (60 beats/minute or less at rest). Sinus bradycardia can be the…
- Pseudorubella Synonymous with Roseola infantum, a viral disease of infants sudden onset of high fever which lasts several…
- Pregnancy danger from fifth disease Caused by a virus known as parvovirus B 19. Symptoms include low-grade fever, fatigue, a 'slapped cheeks…
- Slipped disc Rupturing of the tissue that separates the vertebral bones of the spinal column. The center of the disc…
- Nodding syndrome A mysterious disease of children that causes seizures, growth retardation (stunted growth), mental…
- Speculum, ear An instrument inserted into the auditory canal of the ear to increase the circumference of the tunnel-shaped…
- Gastrointestinal Adjective referring collectively to the stomach and small and large intestines. The commonly used…
- Jugular vein, external The more superficial of the two jugular veins in the neck that drain blood from the head, brain, face and…
- Coenzyme Q10 A compound needed for the proper functioning of an enzyme, a protein that speeds up the rate at which…
- Hallucinogenic 1. As an adjective: Producing hallucinations. From hallucino- + -genic, a word ending meaning producing. 2…