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).
Thyroglossal cyst
A fluid-filled sac present at birth in the midline of the neck. A thyroglossal cyst is a congenital malformation (a birth defect). It results from incomplete closure of a segment of the thyroglossal duct, a tube-like structure that…
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Show more- Randomized clinical trial A clinical trial in which the participants are assigned randomly (by chance alone) to different treatments…
- Cholecystitis Inflammation of the gallbladder, a complication of gallstones which are formed by cholesterol and pigment…
- Cain, mark of The mark that God set upon Cain, the eldest son of Adam. According to the Book of Genesis in the Bible, God…
- Drain, Penrose See: Penrose drain
- Genome annotation The process of identifying the locations of genes and all of the coding regions in a genome and determining…
- Bloody nose The nose is a part of the body that is very rich in blood vessels (vascular) and is situated in a vulnerable…
- PON The symbol for the enzyme called paraoxonase
- Paul Ehrlich 1. Paul Ehrlich (1854-1915), renowned German scientist and physician. See: Ehlich, Paul. 2. Paul R. Ehrlich…
- Line, central venous A catheter (tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava…
- Phosphorus An essential element in the diet and a major component of bone. Phosphorus is also found in the blood…
- Dystonia, focal, due to blepharospasm See: Focal dystonia due to blepharospasm
- Leukemia, acute lymphocytic Abbreviated AML. Also called acute myeloid leukemia or acute nonlymphocytic leukemia (ANLL). A quickly…