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).
Oligodendroglioma
A rare slow-growing type of brain tumor that begins in cells called oligodendrocytes, which provide support and nourishment for cells that transmit nerve impulses. Also called an oligodendroglial tumor.
Read the definitionRandom terms
Show more- Syndrome, sicca An autoimmune diseases, also known as Sjogren syndrome, that classically combines dry eyes, dry mouth, and…
- Arrectores pilorum Tiny muscles that act as the hair erector muscles. The arrectores pilorum play a key role in goose bumps, a…
- Addisonian anemia Anemia: A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not produce the…
- Restriction fragment length polymorphism A difference in DNA between people that can be recognized by the use of a restriction enzyme. Referred to as…
- Optic cup The white, cup-like area in the center of the optic disc. The optic disk is the circular area at the back of…
- Surgery, elective Surgery that is subject to choice (election). The choice may be made by the patient or doctor. For example…
- Olivo- Pertaining to the olive, a structure in the brain
- Sulfonylurea sensitivity Sensitivity to the hypoglycemic effects of the oral hypoglycemic agents in the sulfonylurea class
- Contraction The tightening and shortening of a muscle
- Biliousness A term used in the 18th and 19th centuries pertaining to bad digestion, stomach pains, constipation, and…
- Pelvis, android There are significant differences in the anatomy of the pelvis in the female and male. The android or male…
- Aneurysm, cardiac Outpouching of an abnormally thin portion of the heart wall. An aneurysm is a localized widening (dilatation)…