MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Bile acid
An acid made by the liver that works with bile to break down fats. On a more technical level, bile acids are steroid carboxylic acids derived from cholesterol. The primary bile acids are cholic and chenodeoxycholic acids. They are…
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Show more- Idiopathic Of unknown cause. Any disease that is of uncertain or unknown origin may be termed idiopathic. For example…
- Ribonucleoprotein (RNP) A combination of ribonucleic acid (RNA) and protein. In autoimmune diseases, antibodies can form against…
- Round window The membrane separating the inner ear and middle ear. The tympanum (eardrum) separates the middle ear and…
- Locus The place, in Latin.. In genetics, a locus is the place a gene occupies on a chromosome. One locus, two loci
- Sibship The total number of children born to a set of parents. Siblings belong to a sibship
- Split personality Multiple personality disorder, a neurosis in which the personality becomes dissociated into two or more…
- Antibiotic-resistant tuberculosis See: Tuberculosis, antibiotic-resistant
- Calcific bursitis Calcific bursitis: A bursa is a thin fluid-filled sac that reduces friction forces between tissues of the…
- Vocal cord One of two small bands of muscle within the larynx. These muscles vibrate to produce the voice. The vocal…
- Vanishing twin A twin detected in early pregnancy that is miscarried, frequently by resorption, without clinical signs or…
- Opening, vaginal The opening to the muscular canal extending from the cervix to the outside of the body. The word 'vagina' is…
- Ear, slanted An ear that is slanted more than usual. Technically, an ear is slanted when the angle of the slope of the…