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).
Port wine stain
A mark on the skin that resembles port wine (porto) in its rich ruby red color. Due to an abnormal aggregation of capillaries, a port wine stain is a type of hemangioma. A port wine stain on the face is a sign of the Sturge-Weber syndrome
Read the definitionRandom terms
Show more- Knee, housemaid's See: Housemaid's knee
- Vertebrae, thoracic The 12 thoracic vertebrae are situated between the cervical (neck) vertebrae and the lumbar vertebrae. The…
- Rosary pea See: Abrin
- RFLP An antigen found in the red blood cells of most people: those who have Rh factor are said to be Rh positive…
- Achromycin See: Tetracycline
- Chronic myeloid leukemia See: Chronic myelogenous leukemia
- Craniotomy A surgical operation in which an opening is made in the skull.
- Mutilating keratoderma See: Vohwinkel syndrome
- Disease, Wilson An inherited disorder in which too much copper accumulates in the body. Although the accumulation of copper…
- Blood in semen Padding=0 width='100%' border=0> ODYvAlign=top bgColor=#cccccc colSpan=2> vAlign=top width='100%'…
- Anemia, Mediterranean Better known today as thalassemia (or as beta thalassemia or thalassemia major). The clinical picture of this…
- PHS The Public Health Service, the agency responsible for the public health of the American people. The Public…