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).
PAS
1. Physician-assisted suicide. 2. Personal alert system (an alarm system for an elderly or infirm person). 3. Periodic acid-Schiff (a stain used to detect carbohydrates in tissue).
Read the definitionRandom terms
Show more- Transjugular, intrahepatic, portosystemic shunt S): A shunt (tube) placed between the portal vein which carries blood from the intestines to the liver and…
- Malformation, congenital A physical defect present in a baby at birth, irrespective of whether the defect is caused by a genetic…
- Nerve, tenth cranial The tenth cranial nerve, and one of the most important, is the vagus nerve. All twelve of the cranial nerves…
- Snellen's test type The letters on the familiar eye chart used to measure how well you see at various distances. The eye chart…
- Postherpetic neuralgia Localized pain in the area of involvement of shingles that persists beyond one month. The most common…
- Embryo The organism in the early stages of growth and differentiation from fertilization to, in humans, the…
- Blindness Loss of useful sight. Blindness can be temporary or permanent. Damage to any portion of the eye, the optic…
- Cervical dysplasia Changes from normal in the cells lining the cervix of the uterus. Cervical dysplasia involves a sequence of…
- Bones, axial There are 80 axial bones, comprised of 29 bones in the head and 51 bones in the trunk
- Curette A spoon-shaped instrument with a sharp edge. The word 'curette' comes from the French and means a 'scraper.'…
- Salmonellosis Infection with bacteria belonging to the genus Salmonella. Salmonellosis is a common cause of food poisoning…
- Syndrome, Alpers See: Alpers disease