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).
Mosaic
An individual or tissue containing two or more types of genetically different cells. All females are mosaics because of X-chromosome inactivation (lyonization). Mosaic patterns can affect how genetic disorders are expressed. For example…
Read the definitionRandom terms
Show more- Binocular vision The ability to maintain visual focus on an object with both eyes, creating a single visual image. Lack of…
- Oligohydramnios Scant amniotic fluid: less than usual.
- Vertebra, prominent The 7th cervical (neck) vertebra (C7) is sometimes called the prominent vertebra because of the length of its…
- Tube, swallowing See: Swallowing tube
- Shock, toxic See Syndrome, toxic shock.
- Eye, small Also called microphthalmia, an abnormally small eye, a congenital malformation (birth defect) of the globe…
- Peritoneum The membrane that lines the abdominal cavity and covers most of the abdominal organs. (From the Greek peri-…
- Q fever vaccine A vaccine against Q fever, an illness first recognized in Australia in the 1930's that affects people dealing…
- Suicide prevention Diminishing the risk of suicide. It may not be possible to eliminate entirely the risk of suicide but it is…
- Liter A metric measure of capacity that, by definition, is equal to the volume of a kilogram of water at 4 degrees…
- Bunion A bunion is a localized painful swelling at the base of the big toe (the great toe). The joint is enlarged…
- Neonatology The art and science of caring medically for the newborn.