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).
Aneurysm, saccular
An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word 'aneurysm' comes from the Greek 'aneurysma'…
Read the definitionRandom terms
Show more- Internal medicine A medical specialty dedicated to the diagnosis and medical treatment of adults. A physician who specializes…
- Atrium One of the two smaller chambers of the heart. Each atrium consists of an open space with recessed walls. The…
- Maple syrup urine disease Hereditary disease due to deficiency of an enzyme involved in amino acid metabolism, characterized by urine…
- Bone, sesamoid See Sesamoid bone
- Prostatitis, chronic bacterial Prostatitis, chronic bacterial: Longstanding bacterial infection of the prostate gland superimposed on a…
- Hermansky-Pudlak syndrome Abbreviated HPS. A genetic disorder characterized by albinism (with lack of pigment in the skin or eye)…
- Anteroposterior From front to back. When a chest x-ray is taken with the back against the film plate and the x-ray machine in…
- Litho- See: Lithium.
- Xanthoma tuberosum Xanthoma that clusters near joints. It is associated with lipid disorders, cirrhosis of the liver, and…
- Anisocytosis Excessive inequality in the size of the red blood cells. Anisocytosis ('aniso') is apparent on a blood smear…
- Nerve, pinched See: Nerve compression
- Disease, Takayasu See: Takayasu disease