MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Speculum, ear
An instrument inserted into the auditory canal of the ear to increase the circumference of the tunnel-shaped canal walls. (The auditory canal begins at the circular opening of the ear and continues a distance of about one inch [about 2 1/2…
Read the definitionRandom terms
Show more- Prophylactic cranial irradiation Radiation therapy to the head intended to prevent cancer from spreading (metastasizing) to the brain.
- Greenstick fracture A fracture in which one side of a bone is broken while the other is bent (like a green stick). NTER>
- Polycystic kidney disease Polycystic kidney disease: One of the genetic disorders characterized by the development of innumerable cysts…
- Spastic colitis A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility)…
- ND An extinct subspecies of Homo sapiens who lived in Europe and the area around the Mediterranean from 100,000…
- Parathyrin A small tumor of the parathyroid gland and the most common disorder of the gland. Parathyroid adenomas are…
- Cell, beta (pancreatic) A type of cell in the pancreas (the organ of the digestive system located behind the stomach). Within the…
- Ichthyosis, spasticity, oligophrenia syndrome Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease characterized by a triad of…
- Agent, antibiotic A drug used to treat bacterial infections. The original definition of an antibiotic was a substance produced…
- Glaucoma, normal tension Glaucoma in which the intraocular pressure is normal but there is progressive optic nerve damage and visual…
- Intercellular Between cells, as in an intercellular bridge
- Adverse reaction In pharmacology, any unexpected or dangerous reaction to a drug. An unwanted effect caused by the…