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).
Hereditary nonpolyposis colon cancer
(HNPCC) An hereditary cancer syndrome which carries a very high risk of colon cancer and an above-normal risk of other cancers (uterus, ovary, stomach, small intestine, biliary system, urinary tract, brain, and skin). The HNPCC syndrome is…
Read the definitionRandom terms
Show more- Disease, cardiovascular Disease affecting the heart or blood vessels. Cardiovascular diseases include arteriosclerosis, coronary…
- Dacry- Combining form used before a vowel to denote a relationship to tears. See: Dacryo-
- Paralysis, infantile (polio) Infantile paralysis is an old synonym for poliomyelitis, an acute and sometimes devastating viral disease…
- Pathology The study of disease. Pathology has been defined as 'that branch of medicine which treats of the essential…
- Gingiva The gum
- Evening primrose oil A natural source of essential fatty acids (EFOs). Evening primrose oil contains a higher level of arachnoidic…
- Proxi- Toward the beginning, the nearer of two (or more) items. For example, the proximal end of the femur is part…
- Cloning vector A DNA molecule originating from a virus, a plasmid (see below) or the cell of a higher organism into which…
- Scrub 1. As a verb, to wash the hands and forearms very thoroughly, as before engaging in surgery. To scrub implies…
- Perforation, nasal septum A hole in the nasal septum, the wall inside the nose that runs down the middle dividing it into two sides…
- Microcystic corneal dystrophy A disorder in which the cornea (the normally clear front window of the eye) shows dots (or microcysts)…
- Aperient Laxative. Used both as a noun (an aperient is a laxative) and adjective (prunes are an aperient fruit). From…