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).
Capillary
One of the tiny blood vessels that connect the arterioles (the smallest divisions of the arteries) and the venules (the smallest divisions of the veins). The capillaries form a fine network in many parts of the body. Although minute, the…
Read the definitionRandom terms
Show more- Oscillating vision See: Oscillopsia
- Central At or near the center. In anatomy and medicine (as elsewhere), central is the opposite of 'peripheral' which…
- Capsule >In medicine, a membranous structure that envelops an organ, a joint, tumor, or any other part of the body…
- Interneuron A neuron that exclusively signals another neuron
- Neurooncologist A physician trained to diagnose and treat patients with brain tumors and other types of tumors of the nervous…
- Paterfamilias The male head of the family; the father figure. Paterfamilias is the Latin for father of the household. It is…
- American Psychiatric Association A medical specialty society with over 35,000 US and international member physicians who 'work together to…
- Disease, Hirschsprung A congenital abnormality (birth defect) of the bowel in which there is absence of the ganglia (nerves) in the…
- Pericardium, parietal The outer layer of the pericardium which is a conical sac of fibrous tissue that surrounds the heart and the…
- Uridine monophosphate (UMP) A molecular ion derived from uridylic acid. It has a uracil as its base
- DNA repair gene, Med1 A gene that codes for one of the key enzymes involved in repairing DNA. The DNA in genes is constantly…
- Medullary cystic kidney disease, recessive Ssive type: A childhood genetic kidney disease in which there is progressive symmetrical destruction of the…