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- Syndrome, HELLP See: HELLP syndrome
- Deficiency, hexosaminidase A See: Tay-Sachs disease
- Phylogenetics A physician specializing in physical medicine and rehabilitation. Physiatrists specialize in restoring…
- Aphonia Inability to speak.
- Lithotripsy, percutaneous nephro- (PNL) A technique for removing large and/or dense stones and staghorn stones. PNL is done via a port created by…
- Surgery, cataract See: Cataract surgery
- Macular Pertaining to the macula. A macula is a small spot. A macula on the skin is a small flat spot while the…
- Mitral prolapse Drooping down or abnormal bulging of the mitral valve cusps during the contraction of the heart.
- Amsler grid While conducting an eye examination, the eye care professional may ask the patient to look at an Amsler grid…
- Incontinence, fecal Inability to hold feces in the rectum. This is due to failure of voluntary control over the anal sphincters…
- Engram An enduring change in the brain postulated to account for the persistence of memory. The term 'engram' was…
- Craniotomy A surgical operation in which an opening is made in the skull.