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).
Sinus node
The sinus 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 of the heart…
Read the definitionRandom terms
Show more- Melanoma, intraocular See: Intraocular melanoma
- Hem-onc Short for Hematology-oncology
- Karyotype, spectral (SKY) Karyotype, spectral (SKY): A visualization of all of the chromosomes in the genome all together with each…
- Thalidomide baby An infant affected by prenatal exposure to the drug thalidomide. This medication was prescribed to pregnant…
- Tetany >Hyperreflexia (overactive neurological reflexes), >Carpopedal spasm (spasms of the hands and feet), >Cramps…
- Congenital anomaly Something that is unusual or different at birth. A minor anomaly is defined as an unusual anatomic feature…
- Reactant, acute phase See: Acute-phase protein
- Humidifier Anything, usually a machine today, that adds moisture to the air
- Schistosomiasis Diseases of liver, gastrointestinal tract and bladder caused by schistosomes, trematode worms that parasitize…
- Cocaine The most potent stimulant of natural origin, a bitter addictive anesthetic (pain blocker) which is extracted…
- Reflux laryngitis Reflux laryngitis: Inflammation of the voice box (the larynx) caused by stomach acid backing up into the…
- Cyclic citrullinated peptide A circular peptide containing the amino acid citrulline. Abbreviated CCP. Autoantibodies directed against CCP…