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).
Hemophilia B
Hemophilia due to deficiency of coagulation factor IX in the blood which results in prolonged oozing after minor and major injuries, tooth extractions, or surgery. There is renewed bleeding after the initial bleeding has stopped. The gene…
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Show more- Cascade A sequence of successive activation reactions involving enzymes (enzyme cascade) or hormones (hormone…
- Nail furrows See: Beau's lines
- Brushfield's spots Speckled iris. Little white spots that slightly elevated on the surface of the iris arranged in a ring…
- Proline An amino acid, one of the 20 building blocks of protein. A dietary nonessential amino acid, proline is a…
- Lobe Part of an organ that appears to be separate in some way from the rest. A lobe may be demarcated from the…
- Hansen's bacillus See: Hansen bacillus
- Corticotropin-releasing hormone A hormone made by the hypothalamus that stimulates the release of corticotropin by the anterior pituitary…
- Genotoxin A poisonous substance which damages DNA. A genotoxin can cause mutations in DNA (and so be a mutagen), it can…
- Kingella kingae A type of bacteria that has emerged from obscurity to become known as an important cause of invasive…
- Recessive, X-linked A gene on the X chromosome that expresses itself only when there is no different gene present at that locus…
- Syndrome, polycystic ovary See: Polycystic ovarian syndrome
- Accessory neuropathy Disease of the accessory nerve which is the eleventh cranial nerve. The accessory nerve supplies the…