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).
Amyotrophic lateral sclerosis 3
ALS3. An adult-onset form of amyotrophic lateral sclerosis (ALS) inherited in an autosomal dominant manner and caused by mutation in a gene on chromosome 18q21
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Show more- Hyperexplexia A genetic disorder in which babies have an exaggerated startle reflex (reaction). This disorder was not…
- H Symbol for hydrogen
- Paroxysmal atrial tachycardia See: Crocodile tears syndrome.
- Pediatric UTI See: Urinary tract infection in children
- MALT Mucosa-associated lymphoid tissue.
- Cerebral edema Edema: Accumulation of excessive fluid in the substance of the brain. The brain is especially susceptible to…
- Vaccines Microbial preparations of killed or modified microorganisms that can stimulate an immune response in the body…
- Hypoparathyroidism Hypoparathyroidism: Underfunction of the parathyroid glands with deficient production of the hormone…
- Immunologist A person who is knowledgeable about immunology.
- Lipomatosis, multiple symmetric A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper…
- Crabs Slang for pubic lice. See: Public lice
- Gamma knife A type of radiosurgery (radiation therapy) machine that acts by focusing low-dosage gamma radiation from many…