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).
Obstructive sleep apnea
Sleep apnea (OSA): Sleep apnea is a breathing disorder characterized by brief interruptions of breathing during sleep. It owes its name to a Greek word, apnea, meaning 'want of breath.' There are two types of sleep apnea: central and…
Read the definitionRandom terms
Show more- Smoking, involuntary The involuntary inhaling of environmental tobacco smoke (ETS) by someone who is not smoking. See: ETS
- Leukemia, t(8;21) Leukemia with a translocation (an exchange of material) between chromosomes 8 and 21. Seen characteristically…
- Antithymocyte globulin An immunosuppressive agent that selectively destroys T lymphocytes. Antithymocyte globulin is the gamma…
- Hetero- Chromosomal material that is darkly staining and tightly coiled throughout the cell cycle and that is, for…
- Spondylosis Degeneration of the disc spaces between the vertebrae. This finding in the spine is commonly associated with…
- Myocarditis, viral Inflammation of the muscles in the walls of the heart due to a viral infection. Among the offenders are dozen…
- Fibrates for lowering cholesterol Fibrates are cholesterol-lowering drugs that are primarily effective in lowering triglycerides and, to a…
- RP Retinitis pigmentosa
- Conservative mutation A change in a DNA or RNA sequence that leads to the replacement of one amino acid with a biochemically…
- Resuscitate To restore to life. Derived from the Latin resuscitare, to reawaken
- Agranulocytosis A marked decrease in the number of granulocytes. Granulocytes are a type of white blood cell filled with…
- XXXXX syndrome A chromosome disorder in females, caused by the presence of five X chromosomes rather than the usual two. It…