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).
Spondylolisthesis
Forward movement of one of the building blocks (vertebrae) of the spine in relation to an adjacent vertebra. Spondylolisthesis differs in children and adults. In children it is usually of the fifth lumbar vertebra (L5) over the body of the…
Read the definitionRandom terms
Show more- Fear of birds An abnormal and persistent fear of birds. Sufferers of this fear experience undue anxiety about encountering…
- Lip, cleft The presence of one or two vertical fissures (clefts) in the upper lip -- cleft lip can be on one side only…
- Microhematuria Hematuria means blood in the urine and microhematuria refers to hematuria that is visible only under a…
- Howard Hughes Medical Institute The largest private source of medical research funds in the United States. The Institute is one of the…
- Shigella Epidemic and opportunistic bacillary dysentery due to infection with the Shigella bacteria. Shigellosis…
- Allergic reaction The hypersensitive response of the immune system of an allergic individual to a substance. When an allergen…
- American Academy of Family Physicians (AAFP) >To provide responsible advocacy for and education of patients and the public in all health-related matters…
- Legg-Perthes disease See Legg-Calve-Perthes disease
- Transitional cell carcinoma A type of cancer that develops in the lining of the renal pelvis, ureter or bladder
- Carcinoma in situ, squamous cell An early stage of skin cancer. Also known as Bowen's disease. This is a tumor that develops from the squamous…
- Petechiae Pinpoint flat round red spots under the skin surface caused by intradermal hemorrhage (bleeding into the…
- Plaque psoriasis The most common form of psoriasis -- about 80% of people with psoriasis have this type. Plaque psoriasis can…