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).
Family, gene
A group of genes related in structure and often in function. The genes belonging to a gene family are descended from an ancestral gene. For example, the hemoglobin genes of critical importance to red blood cells belong to one gene family…
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Show more- Antidiuretic hormone (ADH) A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after…
- Syndrome, renal, with hemorrhagic fever A number of diseases, also known as hemorrhagic fever, characterized by an abrupt onset of high fever and…
- Otosclerosis The abnormal formation of new bone in the middle ear that gradually immobilizes the stapes (stirrup bone) and…
- Lingual gyrus An area in the occipital lobe, the visual processing center in the brain. The lingual gyrus extends to the…
- Vesiculitis Inflammation of a vesicle, and particularly of the seminal vesicles behind the male bladder
- Purpura 1. A hemorrhagic area in the skin. The area of bleeding within the skin, by definition, is greater than 3…
- Optic glioma A benign tumor on an optic nerve or the optic chiasm (the crossing of the two optic nerves). Optic gliomas…
- Disease, Kimmelstiel-Wilson Diabetic nephropathy (kidney disease). Kimmelstiel-Wilson disease is a kidney condition associated with…
- Acid, nucleic One of the molecules in the chromosomes of living cells and viruses that plays a central role in the storage…
- Villi Plural of villus, a tiny finger-like or vascular projection
- Chemotherapy, adjuvant Chemotherapy, adjuvant: Chemotherapy (drug therapy) that is given after tumor surgery. The idea underpinning…
- ERISA Employment Retirement Income Security Act. A US law enacted in 1974 which set up the ground rules for pension…