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…
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Show more- Torus fracture A fracture in which one side of the bone bends, but does not actually break. Torus fractures normally heal on…
- Cat eye syndrome A constitutional chromosome abnormality (one that is present at or before birth) with multiple malformations…
- Lymphocyte A small white blood cell (leukocyte) that plays a large role in defending the body against disease…
- Epi- A fold of skin that comes down across the inner angle (canthus) of the eye. The epicanthal fold is more…
- Folate Folic acid, one of the B vitamins that is a key factor in the synthesis (the making) of nucleic acid (DNA and…
- Chaperone Dry, cracked or sore lips, usually in cold, windy, dry weather and less often in warm weather. Sun exposure…
- Humidifier fever Fever: A form of sick building syndrome that usually develops on Monday or the first workday of the week. The…
- Ab- Prefix meaning 'from, away from, off' as in abduction (movement of a limb away from the midline of the body)…
- Ear, external There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The…
- Q fever A vaccine against Q fever, an illness first recognized in Australia in the 1930's that affects people dealing…
- Fibrosis, pulmonary See: Pulmonary fibrosis
- Maternal mortality rate The number of maternal deaths related to childbearing divided by the number of live births (or by the number…