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).
Contrast sensitivity, visual
The ability to perceive differences between an object and its background
Read the definitionRandom terms
Show more- Encephalopathic syndrome A dangerous condition with symptoms similar to those of neuroleptic malignant syndrome (NMS), of which it may…
- Hemophagocytic lymphohistiocytosis A rare, cancer-like disorder in which both histiocytes and lymphocytes start to proliferate and attack body…
- Hearing loss, age-related See: Presbycusis
- Health care proxy A health care proxy is one form of advance medical directive. Advance medical directives pertain to treatment…
- Chronic kidney failure See: Chronic renal failure
- COL2A1 The gene responsible for the production of the alpha1(II) chain of type II collagen. Mutations in the COL2A1…
- Goiter, iodide Just as too little iodine can cause thyroid disease, so may prolonged intake of too much iodine also lead to…
- Transient ischemic attack (TIA, Mini-Stroke) Transient ischemic attack (TIA, Mini-Stroke): A neurological event with the signs and symptoms of a stroke…
- Needle biopsy, stereotactic See: Stereotactic needle biopsy
- Ephedra A medicinal herb, known scientifically as Ephedra sinica and Ephedra equisetina, also known as mahuang and…
- Behind-the-ear hearing aid A hearing aid worn behind the ear. The device amplifies sounds more than most other types of hearing aids…
- Unconscious 1. Interruption of awareness of oneself and one's surroundings, lack of the ability to notice or respond to…