MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Central nervous system (CNS)
The central nervous system is that part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS) is one of the two major divisions of the nervous system. The other is the peripheral nervous system…
Read the definitionRandom terms
Show more- Palliative treatment To palliate a disease is to treat it partially and insofar as possible, but not cure it completely…
- Test, pharmacologic stress There are a diversity of pharmacologic stress tests. Here this refers specifically to a pharmacologic cardiac…
- Bogorad's syndrome Named after the Russian neuropathologist who described the syndrome of crocodile tears. See: Crocodile tears…
- Parenchyma The key elements of an organ essential to its functioning, as distinct from the capsule that encompasses it…
- Doppler ultrasound A form of ultrasound that can detect and measure blood flow. Doppler ultrasound depends on the Doppler…
- Fibrillation, ventricular An abnormal irregular heart rhythm whereby there are very rapid uncoordinated fluttering contractions of the…
- Pharmacopeia Also spelled pharmacopoeia, an official authoritative listing of drugs. Aspirin has, for example, long been…
- Hereditary kidney cancer Kidney cancer due to a gene than can be transmitted from parent to child. The vast majority of kidney cancer…
- Serine An amino acid, one of the 20 building blocks of protein. A dietary nonessential amino acid, serine is present…
- Temperature The temperature is the specific degree of hotness or coldness of the body. It is usually measured with a…
- Uroporphyrinogen decarboxylase deficiency See: UROD deficiency
- Test, stress echocardiography A supplement to the routine exercise cardiac stress test. During stress echocardiography, the sound waves of…