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).
Napiform
A little-used but useful adjective meaning turnip-shaped. Large and round at the top and tapering down sharply and becoming exceedingly slender toward the bottom tip. 'A napiform root is one when much swollen at the base, so as to become…
Read the definitionRandom terms
Show more- Velamentous insertion of umbilical cord An abnormal condition in which the umbilical cord does not insert into the placental mass but, instead…
- HGD The gene encoding an enzyme called homogentisate 1,2-dioxygenase (also known as homogentisate oxidase). HGD…
- Vasculitis, allergic Vasculitis, allergic: A disease (also more commonly called the Churg-Straus syndrome) characterized by…
- Genetic discrimination The potential use of genetic information to discriminate against people in the workplace, in health…
- Asn Asparagine. See also: Amino acid symbols
- Ejection fraction The portion of blood that is pumped out of a filled ventricle as a result of a heartbeat. The heart does not…
- Radiation therapy Radiation therapy: The use of high-energy rays to damage cancer cells, stopping them from growing and…
- Breast fibroadenoma A common benign (not malignant) tumor of the breast. Usually called simply a fibroadenoma. For more…
- Hereditary mutation Mutation: A heritable change in the DNA of a gene or chromosome in a cell destined to become an egg or a…
- Knockout Inactivation of specific genes. Knockouts are often created in laboratory organisms such as yeast or mice so…
- Third ventricle >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Gallstones and ERCP A mixture of microscopic particulate matter in bile, also called biliary sludge, that occurs when particles…