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.
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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).
Vein, portal
A large vein that carries blood from the stomach and the intestines to the liver. The portal vein is formed by the union of the splenic and superior mesenteric veins. It conveys venous blood to the liver for detoxification before the blood…
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Show more- Pseudomonas aeruginosa The versatile 'blue-green pus bacteria' that opportunistically infects people, especially those who are…
- Quinacrine An antimalarial drug and, in cytogenetics, a fluorescent dye used to stain chromosomes. The Y chromosome…
- Ab- Prefix meaning 'from, away from, off' as in abduction (movement of a limb away from the midline of the body)…
- Cruciate ligament, anterior The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- NIGMS Stands for the National Institute of General Medical Sciences, one of the National Institutes of Health in…
- Chromosome A visible carrier of the genetic information. The 3 billion bp (base pairs) in the human genome are organized…
- Lethal Deadly, fatal, capable of causing death, death-dealing. The word 'lethal' comes from the Latin 'letum'…
- ADA (American Dental Association) The mission statement of the ADA reads as follows: 'The ADA is the professional association of dentists…
- Acquired immunodeficiency syndrome AIDS. AIDS is a disease due to infection with the human immunodeficiency virus (HIV). Also referred to as…
- DNA repair gene, Med1 A gene that codes for one of the key enzymes involved in repairing DNA. The DNA in genes is constantly…
- Hereditary ALS See: Familial ALS
- Developmental delay Behind schedule in reaching milestones of early childhood development.