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).
Aggressive lymphoma
A lymphoma that tends to grow and spread quickly and cause severe symptoms. In contrast to an indolent or low-grade lymphoma which tends to grow quite slowly and cause fewer symptoms. Aggressive lymphoma are also known as intermediate or…
Read the definitionRandom terms
Show more- Chromosomes The microscopically visible carriers of the genetic material. They are composed of deoxyribonucleic acid…
- Liquid nitrogen Nitrogen in a liquid state. Liquid nitrogen is supercool -- about 200 degrees Celsius (320 degrees…
- Heterozygous Possessing two different forms of a particular gene, one inherited from each parent. A person who is…
- Iniencephaly A rare neural tube defect that combines extreme retroflexion (backward bending) of the head with severe…
- Necrosis The death of living cells or tissues. Necrosis can be due, for example, to ischemia (lack of blood flow)…
- Polio Abbreviation for poliomyelitis, an acute and sometimes devastating disease caused by a virus. Man is the only…
- Achoo syndrome A disorder characterized by nearly uncontrollable paroxysms of sneezing provoked in a reflex fashion by the…
- C1 (cervical vertebra) C1 is the first cervical (neck) vertebra which is called the atlas. It supports the head. The atlas bone is…
- DSM-IV The 4th edition of 'Diagnostic and Statistical Manual of Mental Disorders' (DSM) a comprehensive…
- Capillary One of the tiny blood vessels that connect the arterioles (the smallest divisions of the arteries) and the…
- Examination, digital rectal (DRE) An exam done to detect abnormalities that can be felt (palpated) from within the rectum. The doctor inserts a…
- Phalanx Anatomically, any one of the bones in the fingers or toes. (Plural: phalanges.) There are 3 phalanges (the…