MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Systole
The time period when the heart is contracting. The period specifically during which the left ventricle of the heart contracts. The final letter in 'systole' is pronounced as a long 'e' as in 'lee.' The adjective for systole is systolic…
Read the definitionRandom terms
Show more- XRT Medical abbreviation for radiotherapy
- Pee An informal term for piss, meant to lessen its vulgarity, but synonymous with it
- Anemia, aplastic See: Aplastic anemia
- Polyneuritis, acute idiopathic Also known as the Guillain-Barre syndrome, a disorder characterized by progressive symmetrical paralysis and…
- Zeitgeber An environmental agent or event that provides the cue for setting or resetting a biological clock. To be…
- Kingella kingae A type of bacteria that has emerged from obscurity to become known as an important cause of invasive…
- Syndrome, dumping A group of symptoms that occur when food or liquid enters the small intestine too rapidly. These symptoms…
- Ants, fire Originally from S. America. Among the worst insect pests ever to invade the U.S. Red or yellowish ants of…
- Wezand See: Weasand
- Arthritis, Lyme Inflammation of the joints associated with Lyme disease, a bacterial disease spread by ticks
- Sternal rib One of the first 7 pairs of ribs. A rib is said to be a 'sternal' rib or a 'true' rib if it attaches to the…
- NASH Nonalcoholic steatohepatitis