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).
Myeloencephalitis
Inflammation of both the spinal cord and the brain. Myeloencephalitis (also called encephalomyelitis) can be caused by a variety of conditions that lead to inflammation of the spinal cord and brain. Among the common causes of…
Read the definitionRandom terms
Show more- Disease, Pick Disease, Pick: A form of dementia characterized by a slowly progressive deterioration of social skills and…
- Laser surgery, YAG The use of a YAG (yttrium-aluminum-garnet) laser to do surgery. One use for a YAG laser in surgery is to…
- Histocompatibility Literally, tissue compatibility. With full histocompatibility between a donor and recipient, tissue can be…
- Ventilation, mechanical Use of a machine called a ventilator or respirator to improve the exchange of air between the lungs and the…
- Heights, fear of An irrational unreasonable fear of heights is called acrophobia. From the Greek 'acron', height + 'phobos'…
- Genetic transport defect Within the body, many molecules are able to pass across the membranes that surround cells. These molecules…
- Beta cell A type of cell in the pancreas. Within the pancreas, the beta cells are located in areas called the islets of…
- Strep test, rapid A diagnostic test commonly used to demonstrate whether streptococcus bacteria ('strep') are present in the…
- Disease, adult celiac This condition results from an immune (allergic) reaction to gluten, a protein found in wheat and related…
- Polydactyly More than the normal number of fingers or toes. From the Greek 'polys' (many) + 'dactylos' (finger) = many…
- Vesical Refers to the urinary bladder. The word comes from the Latin vesica meaning a bag or bladder
- Sleep paralysis A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move…