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).
Neurotoxin
A substance that causes damage to nerves or nerve tissue. For example, lead is a neurotoxin
Read the definitionRandom terms
Show more- Tooth and nail syndrome A genetic disorder characterized by the absence of several teeth at birth and abnormalities of the nails. The…
- Niacin deficiency See: Pellagra
- Aerospace medicine The fields of medicine concerned with the maintenance of health, safety, and performance of those in aviation…
- Tamponade, cardiac A life-threatening situation in which there is such a large amount of fluid (usually blood) inside the…
- Abortion, recurrent The occurrence of 3 or more miscarriages (which are medically termed 'spontaneous abortions') with no…
- Cryosurgery Treatment performed with an instrument that freezes and destroys abnormal tissue. See also cryotherapy.
- Syndrome, Perrault See: Perrault syndrome
- Epilepsy (seizure disorder): When nerve cells in the brain fire electrical impulses at a rate of up to four times…
- Southern tick-associated rash illness A disease characterized by a rash like that in Lyme disease, recognized in the southeastern and south-central…
- Smith-Magenis syndrome A syndrome of abnormal physical, developmental and behavioral features due to microdeletion of chromosome 17…
- Shoulder dislocation Displacement of the ball of the shoulder joint (the top rounded portion of the upper arm bone, or humerus)…
- Viral hemorrhagic fever Viral hepatitis is liver inflammation caused by viruses. Specific hepatitis viruses have been labeled A, B…