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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Omega-3 fatty acids
Omega-3 fatty acids: A class of fatty acids found in fish oils, especially from salmon and other cold-water fish, that acts to lower the levels of cholesterol and LDL (low-density lipoproteins) in the blood. (LDL cholesterol is the 'bad'…
Read the definitionRandom terms
Show more- Breast absence Breast absence: A rare condition wherein the normal growth of the breast or nipple never takes place. They…
- Atrioventricular node The atrioventricular (AV) node is an electrical relay station between the atria (the upper) and the…
- Dystocia, fetal Dystocia caused by the fetus due to its size (too big), shape or position in the uterus
- Compression fracture A fracture caused by compression, the act of pressing together. Compression fractures of the vertebrae are…
- GERD surgery (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Red jungle fowl Gallus gallus, the ancestor of domestic chickens
- DYS Symbol for familial dysautonomia. See: Familial dysautonomia.
- Belching A normal process to relieve distention from the air that accumulates in the stomach. The upper abdominal…
- Hypoventilation The state in which a reduced amount of air enters the alveoli in the lungs, resulting in decreased levels of…
- G (drug caution code) Abbreviation on a medication that stands for 'glaucoma' and indicates the medication can cause problems for a…
- Hematoma, intracranial A hematoma (a collection of blood) within the cranium (skull). The bleed may or may not be within the brain…
- Precancerous Pertaining to something that is not yet overtly cancerous, but appears to be on its way to becoming a cancer…