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.
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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).
Atom
The smallest part of any material that cannot be broken up by chemical means. Each atom has a center (the nucleus) which contains protons and neutrons. Electrons orbit around the nucleus. The atom is primarily empty space. If the nucleus…
Read the definitionRandom terms
Show more- Churg-Strauss syndrome Churg-Strauss syndrome: A disease characterized by inflammation of small arteries and veins in persons with a…
- Induced disease by proxy See: Munchhausen syndrome by proxy
- Leukemia, lymphocytic A form of leukemia that has a sudden onset, lymphocytic leukemia starts in the bone marrow but often spreads…
- Macrocephaly, multiple lipomas, and hemangiomas Bannayan syndrome, a genetic disease characterized by macrocephaly (enlarged head), multiple lipomas (benign…
- Functional magnetic resonance imaging The use of magnetic resonance imaging (MRI) to learn which regions of the brain are active in a specific…
- Unicellular Consisting of one cell only. Some organisms, such as bacteria, are unicellular. Unicellular is in contrast to…
- Brain stem glioma A malignant tumor that arises in the brain stem, the part of the brain that connects to the spinal cord. The…
- Vertical transmission Passage of a disease-causing agent (a pathogen) vertically from mother directly to baby during the perinatal…
- Addiction, computer See: Computer addiction
- Cholangi- Relating to a bile duct. From the Greek chole meaning bile + a(n)geion meaning a vessel = a bile vessel
- Intolerance, food Difficulty in digesting a food. Common offenders include milk products, wheat and other grains that contain…
- Alveolar proteinosis See: Pulmonary alveolar proteinosis