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.
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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).
Attention
The ability to focus selectively on a selected stimulus, sustaining that focus and shifting it at will. The ability to concentrate. 'Everyone knows what attention is,' wrote William James in his Principles of Psychology (1890). 'It is the…
Read the definitionRandom terms
Show more- Willebrand-Juergens disease See: Von Willebrand disease
- Colon syndrome, nervous A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility)…
- Bacteriocidal The science and study of bacteria and their relation to medicine and to other areas such as agriculture…
- Pericardial effusion Too much fluid within the pericardium, the fibrous sac that surrounds the heart. The pericardium normally…
- Clitorectomy A surgical procedure in which all or part of the clitoris and sometimes also the labia are removed…
- Drug-induced liver disease Drug-induced liver disease: Drug-induced liver diseases are diseases of the liver that are caused by…
- Sarcoma botryoides A malignancy of the cervix, vagina, or bladder in infants and young children that arises from embryonal…
- Stenosis, pulmonary The pulmonary valve is too tight so that the flow of blood from the right ventricle of the heart into the…
- Puncture wound An injury caused by a pointed object that pierces or penetrates the skin. Any puncture wound through tennis…
- Hypocarbia Less than the normal level of carbon dioxide in the blood. The opposite of hypercarbia
- Genes The basic biological units of heredity. Segments of deoxyribonucleic acid (DNA) needed to contribute to a…
- Sclero- Pertaining to both the sclera and the conjunctiva. The sclera, a tough white outer coat that covers most of…