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).
Adenosine deaminase (ADA) deficiency
A genetic (inherited) condition that results in a immune deficiency disorder called severe combined immunodeficiency disease. Adenosine deaminase is an enzyme that plays a key role in salvaging purine molecules. ADA deficiency is of…
Read the definitionRandom terms
Show more- Plummer's disease Toxic multinodular goiter. Also called Parry's disease
- Hyperekplexia A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Natriuresis The excretion of an excessively large amount of sodium in the urine. Natriuresis is similar to diuresis (the…
- Babesiosis An illness caused by the parasite Babesia which is transmitted from animals to humans by ticks. In the US, it…
- Electroencephalogram A study of electrical current within the brain. Electrodes are attached to the scalp. Wires attach these…
- Thrombotic disease due to protein C deficiency Protein C is a protein in plasma that enters into the cascade of biochemical events leading to the formation…
- Heteroerotic Having to do with sexual excitement toward the opposite sex. By contrast with alloerotic
- Photocoagulation The coagulation (clotting) of tissue using a laser which produces light in the visible green wavelength that…
- Gingivitis, fusospirillary This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Foreskin The fold of skin which covers the head (the glans) of the penis. Also called the prepuce. Only about 1 in…
- Psychoneuroimmunology The study of the connections between the mind and the neural, immune and endocrine (hormonal) systems. The…
- Sylvius, aqueduct of A canal that communicates between the third and fourth ventricles in a system of four communicating cavities…