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).
Subarachnoid hemorrhage
Bleeding within the head into the space between two membranes that surround the brain. The bleeding is beneath the arachnoid membrane and just above the pia mater. (The arachnoid is the middle of three membranes around the brain while the…
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Show more- NIH A genetic disease named for the city of Nijmegen (in The Netherlands) with increased chromosome breakage…
- UMP Uridine monophosphate
- Fibula The lateral (outside) and smaller of the two long bones in the lower leg between the knee and ankle. (The…
- Sac, dural See: Dural sac
- Category five hurricane A hurricane with winds greater than 155 mph (135 kt or 249 km/hr). Storm surge generally greater than 18 ft…
- Intrauterine contraceptive device (IUD) A device inserted into the uterus (womb) to prevent conception (pregnancy). The IUD can be a coil, loop…
- HSAN III Hereditary sensory and autonomic neuropathy III. See: Familial dysautonomia.
- Hereditary progressive arthro-ophthalmopathy See: Stickler syndrome
- Cancer, non-small cell lung Cancer of the lung which is not of the small cell carcinoma (oat cell carcinoma) type. The term 'non-small…
- Antisense In molecular biology, the strand complementary to a coding sequence of a nucleic acid. Antisense DNA is the…
- Skin Diseases, National Institute of... Is and Musculoskeletal and (NIAMS): One of the National Institutes of Health in the U.S. As its somewhat…
- Corneal abrasion A scratch or scrape on the cornea, the clear front window of the eye that transmits and focuses light into…