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).
Probiotic
A microbe that protects its host and prevents disease. The best-known probiotic is Lactobacillus acidophilus, which is found in yogurt, acidophilus milk, and supplements. Probiotics counter the decimation of helpful intestinal bacteria by…
Read the definitionRandom terms
Show more- Connexin 26 Also known as gap junction beta 2, or GJB2. See: GJB2. See also: Connexin
- Catalysis The process by which a substance speeds up a chemical reaction without being consumed or altered in the…
- Paraquat A toxic chemical widely used as an herbicide (plant killer), primarily for weed and grass control. Paraquat…
- Aggressive lymphoma A lymphoma that tends to grow and spread quickly and cause severe symptoms. In contrast to an indolent or…
- Paraquat lung Lung disease caused by the contact herbicide paraquat which selectively accumulates in the lungs and is…
- Melanoma, superficial spreading One of the four clinical types of malignant melanoma, the most common type in whites, typically presents as a…
- Keratin Protein in the upper layer of the skin, hair, nails and animal horns. The word keratin comes from the…
- SDF-1 An intensely itchy rash due to contact with the tiny thimble jellyfish (Linuche unguiculata). These jellyfish…
- Ear thermometer A thermometer that registers body temperature via the ear canal. The ear thermometer was invented in 1964 by…
- Intrauterine insemination (IUI) A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the…
- B. coli The protozoan parasite Balantidium coli. See: Balantidium
- Vrolik's disease Osteogenesis imperfecta type II, an inherited connective tissue disorder with very severe bone fragility, the…