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).
Histiocytosis, Hand-Schuller-Christian
A disease in which histiocytes start to multiply and attack the tissues or organs of the patient. The disease usually affects children age 2 to 5, less often older children and adults. The most frequent sites of bony involvement are the…
Read the definitionRandom terms
Show more- Erythrasma A chronic superficial slowly spreading skin infection, especially in the folds of the body and webs between…
- Presenteeism The problem of workers being on the job but, because of medical conditions, not fully functioning. The health…
- Morton's metatarsalgia See: Morton's neuroma
- Cortisone An adrenocorticoid hormone, a naturally occurring hormone made by and secreted by the adrenal cortex, the…
- Drug, antithyroid A drug directed against the thyroid gland. The antithyroid drugs include carbimazole, methimazole, and…
- Osteogenesis imperfecta congenita See: Osteogenesis imperfecta type II.
- Unwell Not well or in good health, ailing, sick, indisposed. For example, 'I am well-nigh choked with the sulfurous…
- Spectral karyotype (SKY) Karyotype(SKY): A visualization of all of the chromosomes in the genome all together with each chromosome…
- Rib, false One of the last 5 pairs of ribs. A rib is said to be 'false' if it does not attach to the sternum (the breast…
- Lightheadedness A feeling you are 'going to faint.' Lightheadedness is medically distinct from dizziness, unsteadiness, and…
- Keratitis Inflammation of the cornea (the transparent structure in the front of the eye).
- Lynch syndrome See: Hereditary nonpolyposis colon cancer