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).
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- Allergic contact dermatitis A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system…
- Meningococcus A type of bacteria now formally known as Neisseria meningitidis, which is responsible for a number of…
- Kiddiecam See: Kiddie cam
- Flat feet A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground…
- Multicentric Having more than one center. A term often applied to tumors. A minority of Wilms tumors are multicentric and…
- Lymphatics Small thin channels similar to blood vessels that do not carry blood, but collect and carry tissue fluid…
- Systole, extra See: Extrasystole
- Diastolic Referring to the time when the heart is in a period of relaxation and dilatation (expansion). The noun for…
- Fish bowl granuloma Localized nodular skin inflammation (small reddish raised areas of skin) caused by a bacterium called…
- Intracorporeal Within the body or any structure anatomically called the corpus. For example, when men with erectile…
- Chikungunya An urban disease resembling dengue fever, seen mainly in Africa, the Indian subcontinent, and Southeast Asia…
- Bumps The raised area of a bump or bruise results from blood leaking from these injured blood vessels into the…