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).
Apnea, obstructive sleep
Sleep apnea is a breathing disorder characterized by brief interruptions of breathing during sleep. It owes its name to a Greek word, apnea, meaning 'want of breath.' There are two types of sleep apnea: central and obstructive. > >Central…
Read the definitionRandom terms
Show more- Thrombus A blood clot in a blood vessel or within the heart. From the Greek thrombos meaning a lump or clump, or a…
- Activase Brand name of alteplase, a tissue plasminogen activator made by recombinant DNA technology. See: Tissue…
- Carcinoid tumor A tumor which secretes large amounts of the hormone serotonin. Carcinoid tumor is also called an…
- Blastokinin See: Uteroglobin
- MADH4 A tumor suppressor gene (also known as SMAD4/DPC4) located on chromosome 18 in band 18q21 1. About 15% to 20%…
- Objective In a microscope, the objective (also called the objective lens) is the lens nearest to the object being…
- Coryza A cold in the head. The word 'coryza' came from the Greek 'koryza' which is thought to have been compounded…
- ELA2 The gene encoding the enzyme elastase 2 (neutrophilic elastase). Mutations in ELA2 cause cyclic…
- Maturity onset diabetes of the young Diabetes mellitus that has early onset (usually before the age of 25), is non-insulin-dependent, and is…
- Craniosynostosis Premature fusion of the cranial sutures (the fibrous joints between the bones of the skull) in an infant…
- IDEC-Y2B8 monoclonal antibody See: Yttrium Y 90 ibritumomab tiuxetan
- Midgut volvulus See: Volvulus