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).
Congenital heart disease
Congenital heart disease: A malformation of the heart or the large blood vessels near the heart. The term 'congenital' speaks only to time, not to causation; it means 'born with' or 'present at birth.' Congenital heart disease is the most…
Read the definitionRandom terms
Show more- Teleology The study of the ultimate purpose of the design of something in nature. For example, 'what is the true…
- Yoga A way of life that includes ethical precepts, dietary prescriptions, and physical exercise. Its practitioners…
- PML Stands for progressive multifocal leukoencephalopathy, a rapidly progressive, often fatal viral infection of…
- Nerve, sixth cranial The sixth cranial nerve is the abducent nerve, a small motor nerve that has one task: to supply a muscle…
- Ovarian teratoma Also called a dermoid cyst of the ovary, this is a bizarre tumor, usually benign, in the ovary that typically…
- Fecal Relating to the feces, the stool. The excrement discharged from the intestines. From the Latin 'faex' and…
- Tonsil stone A tiny stone (calculus) in the tonsils. These stones, called tonsilloliths, are found within little pockets…
- Environment The sum of the total of the elements, factors and conditions in the surroundings which may have an impact on…
- DNA repair The body has a series of special enzymes to repair mutations (changes) in the DNA and restore the DNA to its…
- Behavior center, moral An area of the brain in what is known as the prefrontal cortex. Children who suffer damage before 16 months…
- Syndrome, dyskeratosis congenita An inherited cause of bone-marrow failure, dyskeratosis congenita is a syndrome characterized by abnormal…
- Splenomegaly Enlargement of the spleen.