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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Gallstones
Gallstones: Stones that form when substances in the bile harden. Gallstones can be as small as a grain of sand or as large as a golf ball. There can be just one large stone, hundreds of tiny stones, or any combination. Gallstones can block…
Read the definitionRandom terms
Show more- Evacuation supplies kit Endovascular aneurysm repair. A procedure to repair an aneurysm of the aorta. In EVAR a stent is placed in…
- Uniparous 1) Having produced only one offspring. Also called primiparous. 2) Producing only one offspring at a time…
- Lichtenberg figures A fern-leaf pattern of reddish, painless marks on the skin that are a result of a skin reaction to a…
- Colostomy, a patient's perspective For an excellent article about colostomy from a patient's viewpoint, please see Colostomy - A Patient's…
- Allergy desensitization Stimulation of the immune system with gradually increasing doses of the substances to which a person is…
- Papillary renal cell carcinoma A type of kidney cancer that accounts for 15 to 20% of renal carcinomas. It occurs in both sporadic and…
- Q.n.s. On a lab report, q.n.s. (or qns or QNS) means Quantity Not Sufficient. Not enough blood, urine or whatever to…
- Somatic cell nuclear transfer The transfer of the nucleus from a somatic cell into an egg from which the nucleus has been removed
- Regulatory gene A gene that regulates the expression of other genes. A regulatory gene is a nosy gene whose prime…
- Heel spur A bony spur projecting from the back or underside of the heel that often makes walking painful. Spurs at the…
- Public health school A school designed to teach public health and train public health professionals. The first school of public…
- Ascariasis Infection with Ascaris lubricoides, the intestinal roundworm, the most common worm infection in humans…