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).
White matter
The part of the brain that contains myelinated nerve fibers. The white matter is white because it is the color of myelin, the insulation covering the nerve fibers. The white matter is as opposed to the gray matter (the cortex of the brain…
Read the definitionRandom terms
Show more- Proband The family member through whom a family's medical history comes to light. For example, a proband might be a…
- Granulation That part of the healing process in which rough, pink tissue containing new connective tissue and capillaries…
- Somatic cell Any cell in the body other than an egg or sperm
- Medicine, legal See: Legal medicine
- Avascular necrosis of the femoral head See Legg-Calve-Perthes disease
- Debride To remove dead, contaminated or adherent tissue or foreign material. The purpose of wound debridement is to…
- Genitalia, female external See: Female external genitalia
- Hexadactyly The presence of an extra digit, a sixth finger or toe, which is a very common congenital malformation (birth…
- Ehlers-Danlos syndrome See: Ehlers-Danlos syndrome, dermatosparaxis type.
- Occipital hematoma A hematoma (collection of blood) in the occipital region (at the back of the head). An occipital hematoma may…
- Ondine's curse Failure from birth of central nervous system control over breathing while asleep. There are usually no…
- Yellow enzymes A group of respiratory enzymes that catalyze reactions in the body permitting cells to respire, to breath…