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).
Sinoatrial node
The sinoatrial node (the SA node) 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…
Read the definitionRandom terms
Show more- Homolog (homologue) One chromosome of a pair.
- Cauliflower ear Adding=0 width='100%' border=0> ODYvAlign=top bgColor=#cccccc colSpan=2> vAlign=top width='100%'…
- Coronary bypass A bypass of a plaque within a coronary artery using part of a vein as a graft. See: Coronary artery bypass…
- Acute brain syndrome See: Delirium
- Krukenberg tumor A tumor of the ovary caused by the spread of stomach cancer. When the stomach cancer spreads to an ovary, the…
- Iatromisia An intense dislike of doctors. From 'iatro-' indicating a relationship to a physician or medicine + the Greek…
- Hydroxyurea In Greek mythology, a goddess considered to be the guardian or personification of health. Hygieia was the…
- HIB This immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- Bradykinetic Pertaining to slowed ability to start and continue movements, and impaired ability to adjust the body's…
- Burkholderia cepacia (B. cepacia, for short.) A group of bacteria found in soil and water that are often resistant to common…
- Otolaryngologist A physician specialized in diagnosing and treating diseases of the head and neck, especially those involving…
- Ejaculation Ejection of sperm and seminal fluid