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).
Venule
A little vein. Venules go from capillaries to veins, vessels that carry blood low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxyhemoglobin) makes the blood in veins and venules appear dark…
Read the definitionRandom terms
Show more- Francis Crick See: Crick, Francis
- Disease, phytanic acid storage See Refsum disease
- Memory, recent Short-term memory. Also called working memory. Recent memory is a system for temporarily storing and managing…
- Fetal rubella effects The constellation of abnormalities, also called the rubella syndrome, caused by infection with the rubella…
- Acute leukemia Leukemia: Cancer of the white blood cells (leukemia) that characteristically comes on abruptly and, if not…
- Rabies Rabies: A potentially fatal viral infection that attacks the central nervous system. The rabies virus is…
- Quinine The original antimalarial agent, quinine took its name from the Peruvian Indian word 'kina' meaning 'bark of…
- Gene, evolutionarily conserved A gene that has remained essentially unchanged throughout evolution. Conservation of a gene indicates that it…
- Hydrostatic weighing See: Underwater weighing
- Puncture wound An injury caused by a pointed object that pierces or penetrates the skin. Any puncture wound through tennis…
- Conditioning, Pavlovian Named after the Russian physiologist Ivan Petrovich Pavlov (1848-1936) who conditioned dogs to respond in…
- Journal of the American Medical Association A medical journal sponsored by the National Cancer Institute (NCI), one of the National Institutes of Health…