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).
ALS
Amyotrophic lateral sclerosis. ALS has two meanings. One meaning of ALS refers to several adult diseases characterized by progressive degeneration of motor neurons. (In the UK, the term 'motor neuron disease' is used for these disorders.)…
Read the definitionRandom terms
Show more- ICSI Jaundice. At least one medical dictionary defines icterus as the presence of jaundice seen in the sclera of…
- Addiction A chronic relapsing condition characterized by compulsive drug-seeking and abuse and by long-lasting chemical…
- Selective tubal occlusion procedure (The acronym for selective tubal occlusion procedure is STOP.) A nonsurgical form of permanent birth control…
- Protean Very variable; easily changing; or continually changing. Protean is not to be confused with protein (a member…
- Food-insecure Referring to the situation when people need to live with hunger and fear starvation
- Bony tarsus The bony tarsus is made up of 7 bones that are situated between the bones of the lower leg and the metatarsus…
- Crossing over The exchange of genetic material between two paired chromosomes. Crossing over is a way to recombine the…
- Acute myeloid leukemia Acute myeloid leukemia: A quickly progressive malignant disease in which there are too many immature…
- Flashing 'Flashing,' or exhibitionism is characterized by intense, sexually arousing fantasies, urges or behaviors…
- Vessel, afferent A vessel that carries blood toward the heart. A vein or venule
- Bursitis, calcific A bursa is a thin fluid-filled sac that reduces friction forces between tissues of the body. Chronic…
- Hand-arm vibration syndrome A disorder resulting from prolonged exposure to vibration, specifically to the hands and forearms while using…