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).
Macular hole
A hole in the macula, the tiny oval area made up of millions of nerve cells located at the center of the retina responsible for sharp, central vision. The eye contains a jelly-like substance called the vitreous. Shrinking of the vitreous…
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Show more- Docosahexaenoic acid DHA. An essential fatty acid, thought to be important to the development of infants, particularly as regards…
- Necrobiosis lipoidica diabeticorum A dull red raised area on the skin that evolves into a shiny scar with a violet border, most often on the…
- Hospice A program or facility that provides special care for people who are near the end of life and for their…
- Adrenal cortex The outer portion of the adrenal gland located on top of each kidney. The adrenal cortex produces steroid…
- Cervix The cervix is the lower, narrow part of the uterus (womb). The uterus, a hollow, pear-shaped organ, is…
- Poikiloderma atrophicans with cataract Better known as the Rothmund-Thomson syndrome, this is an hereditary disease characterized by progressive…
- Coefficient of inbreeding A measure of how close two people are genetically to each another. The coefficient of inbreeding, symbolized…
- Radiation during pregnancy See: Prenatal radiation exposure
- CpG In genetics, a site where cytosine (C) lies next to guanine (G) in the DNA sequence. (The p indicates that C…
- Nuclear family The family group consisting of the father, mother, and their children, as distinct from the extended family
- Floater A blurry spot that seems to drift in front of the eyes but does not block vision. The blur is the result of…
- Centrencephalic seizure See: Grand mal