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).
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…
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Show more- Plague, sylvatic Plague that is spread by ground squirrels and other wild rodents, for example, in the western portion of the…
- Upper GI series Upper GI series: A series of x-rays of the esophagus, stomach, and small intestine (upper gastrointestinal…
- Proctosigmoidoscopy See: Sigmoidoscopy
- Regulatory gene A gene that regulates the expression of other genes. A regulatory gene is a nosy gene whose prime…
- Smoke, environmental tobacco Abbreviated ETS. See: ETS.
- Deformation A setting of limits; a boundary; marking the limits of, delimiting; setting apart, separating. The word…
- FEV1 Forced Expiratory Volume in the first second. The volume of air that can be forced out in one second after…
- Foreskin, tight See Phimosis
- Alkaloid A member of a large group of chemicals that are made by plants and have nitrogen in them. Many alkaloids…
- Mentum Medical term for the chin. From Latin. See: Chin
- PAH Polycyclic aromatic hydrocarbon
- Fear of sexual intercourse An abnormal and persistent fear of male-female sexual intercourse. Sufferers of this fear experience undue…