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).
Thallium poisoning
Poisoning with the element thallium which enters the environment primarily from coal-burning and smelting. It stays in the air, water, and soil for a long time and is not broken down. It builds up in fish and shellfish. The major source of…
Read the definitionRandom terms
Show more- Proteins, acute-phase See: Acute-phase protein
- Efferent Carrying away. An artery is an efferent vessel carrying blood away from the heart. An efferent nerve carries…
- Nail-patella syndrome An hereditary condition characterized by abnormally formed or absent nails and underdeveloped or absent…
- International normalized ratio An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used…
- Hemophilia B Hemophilia due to deficiency of coagulation factor IX in the blood which results in prolonged oozing after…
- Cyst, tarsal Also called a chalazion or a Meibomian cyst, an inflammation of the oil gland of the eyelid.
- Bony syndactyly A condition in which the bones of fingers or toes are joined together. Bony syndactyly is the opposite of…
- Helper cell A type of T cell that participates in the immune response by recognizing foreign antigens and secreting…
- Landau-Kleffner syndrome Landau-Kleffner syndrome: A disorder with seizures starting in childhood in which the patient loses skills…
- Hemifacial microsomia See: Goldenhar syndrome
- Retrospective diagnosis See: Retrodiagnosis
- Depression, major Depression, major: A disease that interferes with the ability to work, sleep, eat, and enjoy once pleasurable…