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).
Anthrax toxin
The toxic substance secreted by the bacterium Bacillus anthracis, the causative agent of the disease anthrax. Anthrax toxin is made up of three proteins. One is protective antigen and two are enzymes that are called edema factor and lethal…
Read the definitionRandom terms
Show more- Enuresis Involuntary urination, which may be caused by a variety of factors. These include disorders of the kidneys…
- Blood urea nitrogen Medically called hematuria, blood in the urine can be microscopic or gross. Evaluating hematuria requires…
- Leishmania A group of parasites causing a disease called leishmaniasis. For a fuller definition and more information…
- Varus (vara, varum) Angled inward, bent or twisted inward, as in cubitus varus, hallux varus, talipes equinovarus…
- Red-green colorblindness A form of colorblindness in which red and green are perceived as identical. This is the most common type of…
- Epiphenomenon 1. An additional symptom or condition that appears during the course of a disease. A doctor might ask if you…
- Cortisol The primary stress hormone. Cortisol is the major natural GLUCOCORTICOID (GC) in humans
- Rectal (adjective) Having to do with the rectum, the last 6 to 8 inches of the large intestine that serves to store solid waste…
- Arteria femoralis See: Femoral artery
- SCID Severe combined immunodeficiency disease
- Tag, skin A small tag of skin that may have a stalk (a peduncle). Skin tags may appear on the skin almost anywhere…
- NIH A genetic disease named for the city of Nijmegen (in The Netherlands) with increased chromosome breakage…