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).
Preexcitation
In cardiology, the premature activation of part of the ventricle due to transmission of impulses along an accessory pathway that is not subject to the normal delay at the atrioventricular node. Preexcitation is sometimes used as a synonym…
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Show more- High altitude Altitude sickness occurs at high altitude. So what is high altitude? Altitude is defined on the following…
- Gastric MALT lymphoma A low-grade malignant lymphoma of the stomach associated with chronic infection by the bacterium H. pylori…
- Cerebral herniation The abnormal protrusion of brain tissue through an opening when there is increased intracranial pressure…
- Nerve, sciatic The largest nerve in the body, the sciatic nerve begins from nerve roots in the lumbar part of the spinal…
- Carbonmonoxyhemoglobin See: Carboxyhemoglobin
- Hereditary kidney cancer Kidney cancer due to a gene than can be transmitted from parent to child. The vast majority of kidney cancer…
- Sulfite sensitivity Adverse reactions of an allergic nature to sulfites. Sulfites occur in fermentation and also occur naturally…
- Total hysterectomy Hysterectomy: Complete surgical removal of the uterus and cervix. Also called a complete hysterectomy
- Lymph node, sentinel The first lymph node ('gland') to receive lymphatic drainage from a tumor. Which lymph node is the sentinel…
- Dystocia Difficult or abnormal labor or delivery. From the Greek 'dys' meaning 'difficult, painful, disordered…
- Central auditory processing disorder A condition in which there is an inability to differentiate, recognize or understand sounds while both the…
- Conotoxin A toxin made by cone snails (Conidae), also called cone shells, which are fish-eating snails that inhabit…