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).
Birthmark
A persistent visible mark on the skin that is evident at birth or shortly thereafter. A birthmark is often due to a nevus (a mole) or an hemangioma (a localized collection of small blood vessels). Birthmarks that are pink or red are…
Read the definitionRandom terms
Show more- Lymphoma, indolent See: Indolent lymphoma
- Single transverse palmar line Simian crease
- Quater in die (on prescription) Seen on a prescription, qid (or q.i.d.) means 4 times a day (from the Latin quater in die). The abbreviation…
- Solitude, fear of An abnormal and persistent fear of solitude, of being alone. Sufferers of this fear experience undue anxiety…
- Proinflammatory Capable of promoting inflammation. For example, air pollution may have proinflammatory effects
- Methicillin-resistant staphylococcus aureus Staphylococcus aureus (a type of staph bacteria) resistant to the antibiotic methicillin. Abbreviated MRSA…
- Antonomasia 1. The substitution of a title for a proper name, as in addressing a physician as 'Doctor' or a nurse as…
- Alpha-fetoprotein (AFP) AFP is a plasma protein that is normally produced by the fetus. It serves as the basis for some useful tests…
- Esophageal cancer with tylosis See: Tylosis with esophageal cancer
- Aorta, ascending The ascending aorta is the first section of the aorta, the largest artery in the body. The ascending aorta…
- Pain, shoulder See: Shoulder pain
- Oscitation The act of yawning, the involuntary opening of the mouth with respiration, breathing first inward, then…