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).
Heart conduction system
The electrical conduction system that controls the heart rate. This system generates electrical impulses and conducts them throughout the muscle of the heart, stimulating the heart to contract and pump blood. Among the major elements in…
Read the definitionRandom terms
Show more- DV Blood clotting in the veins of the inner thigh or leg. In air travel, DVT is the "economy-class syndrome."…
- Temporal-lobe epilepsy Epilepsy that is characterized by abnormal electrical activity in the temporal lobe of the brain. This…
- Electrocardiogram Electrocardiogram: A recording of the electrical activity of the heart. An electrocardiogram is a simple…
- Septum, cardiac The cardiac septum is the dividing wall between the right and left sides of the heart. That portion of the…
- Base sequence analysis A method for determining the order of nucleotide bases in DNA
- FGD1 The faciodigitogenital dysplasia gene. FGD1 normally plays an essential role in embryonic development…
- Leukemia, blastic phase of Leukemia, blastic phase of: A stage in which 30 percent or more of the cells in the bone marrow or blood are…
- Genetic transport defect Within the body, many molecules are able to pass across the membranes that surround cells. These molecules…
- Cochlea The cochlea is the part of the inner ear that converts mechanical energy (vibrations) into nerve impulses…
- Nonrandom Not by chance alone. Not in keeping with the process by which an outcome is determined solely by chance, for…
- Dengue hemorrhagic fever (DHF) Fever (DHF): A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal…
- Conventional medicine Medicine as practiced by holders of M.D. (medical doctor) or D.O. (doctor of osteopathy) degrees and by their…