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).
Beckwith-Wiedemann syndrome
An overgrowth syndrome, whose clinical manifestations typically include macrosomia (large body size), macroglossia (large tongue), omphalocele (exomphalos), organomegaly (enlarged organs), hemihypertrophy (overgrowth of one side of the…
Read the definitionRandom terms
Show more- Neuroendocrine cancer of the skin Also called Merkel cell carcinoma. An uncommon but highly malignant skin tumor that characteristically starts…
- Colitis, mucus A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility)…
- Trichina spiralis Is a parasitic worm that lives in the intestines and causes a serious illness known as trichinosis. The eggs…
- Bone cyst, simple A solitary fluid-filled cyst (cavity) in a bone, usually in the shaft of a long bone, especially the humerus…
- Passive exercise Movement of the body, usually of the limbs, without effort by the patient. The patient is passive
- Pollen Small, light, dry protein particles from trees, grasses, flowers, and weeds that may be spread by the wind…
- Hemorrhage Bleeding or the abnormal flow of blood. The patient may have an internal hemorrhage that is invisible or an…
- Nicotiana tabacum A South American herb whose leaves contain 2-8% nicotine and serve as the source of smoking and smokeless…
- Pulse, water hammer A jerky pulse that is full and then collapses because of aortic insufficiency (when blood ejected into the…
- Advance directives These directives pertain to treatment preferences and the designation of a surrogate decision-maker in the…
- HIB immunization This immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- Yellow jacket sting A sting from a yellow jacket (or other large stinging insects such as bees, hornets and wasps) can trigger…