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).
Syndrome, fragile X
The most common heritable form of mental retardation, occurring in about one in two thousand males and a smaller percentage of females. Characteristics of Fragile X syndrome in boys include prominent or long ears, a long face, delayed…
Read the definitionRandom terms
Show more- Guasha See: Gua-sha
- Cachectic Having cachexia, physical wasting with loss of weight and muscle mass due to disease. Patients with advanced…
- Philadelphia chromosome (Ph) The chromosome abnormality that causes chronic myeloid leukemia (CML). Abbreviated as the Ph chromosome. The…
- Tandem mass spectrometry An instrument used in medical laboratories consisting of two mass spectrometers in series connected by a…
- Emergency department The department of a hospital responsible for the provision of medical and surgical care to patients arriving…
- Schizotypal personality disorder A type of personality characterized by unusual patterns of speech and behavior and by social withdrawal. See…
- Celiac disease Celiac disease: A disorder resulting from an immune reaction to gluten, a protein found in wheat and related…
- Penicillin Penicillin: The most famous of all antibiotics, named for the fungal mold Penicillium notatum from which it…
- Melanoma, ocular A malignant melanoma arising from a structure within the eye. The most common sites of origin are the…
- Syndrome, Peter Pan Term coined by pop psychology author Dan Kiley in his book 'Peter Pan syndrome: Men Who Have Never Grown Up.'…
- Nummular eczema Coin-shaped patches of irritated skin-most common on the arms, back, buttocks, and lower legs that may be…
- Eczema, nummular Coin-shaped patches of irritated skin-most common on the arms, back, buttocks, and lower legs that may be…