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).
Neuroendocrine cancer of the skin
Also called Merkel cell carcinoma. An uncommon but highly malignant skin tumor that characteristically starts in a sun-exposed area in a lightskinned person over 60 as a firm painless shiny lump that can be red, pink, or blue and range in…
Read the definitionRandom terms
Show more- Ambulatory Able to ambulate, to walk about, not bed-ridden or hospitalized
- Mast cell tumor A mastocytoma
- Syndrome, Sjogren-Larsson The Sjogren-Larsson syndrome is a genetic (inherited) disease usually characterized by a triad of clinical…
- UNOS Acronym for the United Network for Organ Sharing, the nationwide umbrella for transplantation organ sharing…
- Prostate specific antigen Prostate specific antigen: Widely known as PSA. See: PSA.
- Prognathism An overly prominent jaw.
- Hypo- Prefix meaning 'low, under, beneath, down, below normal' as in hypocalcemia (low calcium in the blood)…
- Rectal cancer Cancer: A malignant tumor arising from the inner wall of the final part of the large intestine -- the rectum…
- Virus, human papilloma JC virus.
- Test, Denver Developmental Screening The Denver Developmental Screening Test (DDST) is a widely used assessment for examining children 0-6 years…
- Aortic atresia Congenital absence of the normal valvular opening from the left ventricle of the heart into the aorta…
- Hydrocephalus, Macewen sign of A sign to detect hydrocephalus (and brain abscess). Percussion (tapping) on the skull at a particular spot…