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).
Proctitis, ulcerative
Ulcerative colitis that is limited to the rectum. Ulcerative colitis itself is a relatively common disease involving inflammation of the large intestine (the colon). The cause is unknown. It is a form of inflammatory bowel disease and has…
Read the definitionRandom terms
Show more- Sprain, metatarsophalangeal joint See: Metatarsophalangeal joint sprain
- Lumen A luminous term referring to the channel within a tube such as a blood vessel or to the cavity within a…
- Lindane An organochlorine pesticide and nerve poison. Also a suspected carcinogen (cancer-causing agent). Although…
- Pyelonephritis in children Kidney infection in children. See: Urinary tract infection in children
- Psoralen photochemotherapy See: PUVA
- Bed sore A painful, often reddened area of degenerating, ulcerated skin caused by pressure and lack of movement, and…
- Tap, joint (aspiration) A procedure whereby a sterile needle and syringe are used to drain joint fluid from the joint. This is…
- HS Hereditary spherocytosis. HS also stands for half-strength, hamstrings, heart sounds, heparan sulfate, hernia…
- Subcutaneous Under the skin. 'Subcutaneous' implies just under the skin. With a subcutaneous injection, a needle is…
- Vitreous type 2 Stickler syndrome Stickler syndrome, type II. See: Stickler syndrome
- Disease, Canavan A severe progressive inherited (genetic) disorder of the central nervous system (CNS). The signs of Canavan…
- JCML Juvenile chronic myelogenous leukemia. See: Juvenile myelomonocytic leukemia