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).
Dilator
A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which food passes from the throat to the stomach (esophagus) can require a dilator procedure in order to open the esophagus for adequate…
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Show more- Cardioplegia Paralysis of the heart, as may be done electively in stopping the heart during cardiac surgery. Cardioplegia…
- Childbirth fever Fever due to an infection usually of the placental site within the uterus. The fever is also called childbed…
- Cor biloculare A two-chambered heart. Cor biloculare is due to failure of development of the walls that normally separate…
- Hepatocellular carcinoma A tumor in which the cancer starts during adulthood in cells in the liver. Also called adult primary liver…
- Impotence Impotence: A common problem among men characterized by the consistent inability to sustain an erection…
- Balance, sense of Our sense of balance is regulated by a complex interaction of the following parts of the nervous system: >…
- Five-day fever Fever: Also called trench fever, this is a disease borne by body lice that was first recognized in the…
- Spleen, ruptured Rupture of the capsule of the spleen is a potential catastrophe that requires immediate medical and surgical…
- Lunula 1. The crescent-shaped area at the base of a fingernail or toenail. 2. Any small crescent- or moon-shaped…
- Xenoantigen An antigen that is found in more than one species. An antigen is something that is capable of inducing an…
- Patellectomy An operation to remove the patella
- Cyt- Prefix used in place of cyto- before a vowel. See: Cyto-