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).
Twelfth cranial nerve
The hypoglossal nerve. The twelve cranial nerves, including the hypoglossal nerve, emerge from or enter the skull (the cranium). The hypoglossal nerve supplies the muscles of the tongue. Paralysis of the hypoglossal nerve affects the…
Read the definitionRandom terms
Show more- Diabetes, unstable A term used when a diabetic person's blood glucose (sugar) level often swings quickly and widely from high to…
- Deficiency, lactase Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of…
- Coprolith See: Fecalith
- Implant 1. To embed; to set in firmly. In embryology, the fertilized egg implants in the uterine lining 6 or 7 days…
- Health physics The science of human health and radiation exposure. Health physics, also called medical physics, is devoted…
- Red cell count The number of red blood cells (RBCs) in a volume of blood. The normal range varies slightly between…
- DNA cloning The use of DNA manipulation procedures to produce multiple copies of a single gene or segment of DNA
- CCR5 A chemokine receptor found on monocytes and lymphocytes that serves as the coreceptor for HIV. HIV strains…
- Pulse, trip-hammer See: Pulse, water hammer
- BMI calculation The British Medical Journal. The BMJ states that it "aims to help doctors everywhere practice better medicine…
- Reportable disease A disease that must be reported to federal, state, or local health officials when diagnosed. Reportable…
- Disease, mitochondrial >An eye disease called Leber's hereditary optic atrophy; >A type of epilepsy called MERRF which stands for…