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).
Node, sinoatrial
The sinoatrial is one of the major elements in the cardiac conduction system, the system that controls the heart rate. This stunningly designed system generates electrical impulses and conducts them throughout the muscle of the heart…
Read the definitionRandom terms
Show more- Anetoderma An area of slack 'baglike' skin due to a local absence or loss of elastic fibers in the skin. The skin…
- Adult T-cell leukemia/lymphoma See: Adult T-cell leukemia
- Atrial fibrillation Atrial fibrillation: Abnormal irregular heart rhythm with chaotic generation of electrical signals in the…
- Physician, family A physician who is educated and trained in family practice. 'Family physicians possess unique attitudes…
- PARK3 Familial Parkinson disease type 3
- Sz Seizure
- Nit Nits are lice eggs. They are hard to see and are often confused with dandruff or hair spray droplets. Nits…
- Wagner syndrome See: Stickler syndrome
- Inguinal Having to do with the groin.
- Stage of expulsion See: Second stage of labor
- Metrorrhagia Uterine bleeding at irregular intervals, particularly between the expected menstrual periods. Metrorrhagia…
- Vesicle, seminal See: Seminal vesicle