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).
Sz
Seizure
Read the definitionRandom terms
Show more- Acetylcholinesterase An enzyme that breaks down the neurotransmitter acetylcholine at the synaptic cleft (the space between two…
- Sacral agenesis See agenesis, sacral
- Atresia, aortic Congenital absence of the normal valvular opening from the left ventricle of the heart into the aorta…
- Paterson-Kelly syndrome See: Plummer-Vinson syndrome
- Fat, saturated A fat that is solid at room temperature and comes chiefly from animal food products. Some examples are…
- Tachycardia, sinus A fast heartbeat (tachycardia) because of rapid firing of the sinoatrial (sinus) node. The sinoatrial (or…
- Gorlin-Goltz syndrome See: Gorlin syndrome
- Esophageal cancer Esophageal cancer: A malignant tumor of the esophagus. The risk of cancer of the esophagus is increased by…
- Drain, Jackson-Pratt See: JP drain
- Ejaculation Ejection of sperm and seminal fluid
- Low-set ear An ear positioned below its normal location. Classified as a minor anomaly. Technically, the ear is low-set…
- Incontinence, urinary Incontinence, urinary: The unintentional loss of urine. Inability to hold urine in the bladder due to loss of…