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).
Arrhythmias, rapid
Abnormally rapid heart rhythms, medically termed tachycardia
Read the definitionRandom terms
Show more- Chronic renal failure Slow progressive loss of kidney function over the span of years, resulting in permanent kidney failure…
- Level 4 biosafety >Level 1 -- This level applies to agents that do not ordinarily cause human disease. >Level 2 -- This level…
- Gerstmann-Straussler-Scheinker syndrome See: Gerstmann-Straussler-Scheinker syndrome
- Seizure, grand mal See: Grand mal
- Reflux surgery (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Abstemious Marked by restraint, especially in the consumption of food or alcohol. From the Latin prefix 'abs-,' meaning…
- Thrombospondin One of a family of glycoproteins (carbohydrates complexed with proteins) that are made in cells, secreted by…
- Titin A giant filamentous protein essential to the structure, development, and elasticity of muscle. The gene…
- Vaccine, German measles A vaccine designed to prevent rubella, or German measles. German measles was once seen merely as a child's…
- Needle biopsy, stereotactic See: Stereotactic needle biopsy
- ALOX5AP Arachidonate 5-lipoxygenase-activating protein. See: FLAP
- Breast cancer Breast cancer: Breast cancer is diagnosed with self- and physician-examination of the breasts, mammography…