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).
Preleukemia
A condition in which the bone marrow does not produce enough blood cells. This condition may progress to become acute leukemia. Preleukemia also is called myelodysplastic syndrome or smoldering leukemia
Read the definitionRandom terms
Show more- Breast cancer gene BRCA2 See: BRCA2
- Microcytic 1. Any abnormally small cell. The opposite is macrocytic, an abnormally large cell. 2. An abnormally small…
- Termination codon See: Stop codon
- Syndrome, joint hypermobility See Syndrome, hypermobility
- Calculi, renal Kidney stones, by another name. A common cause of blood in the urine and pain in the abdomen, flank, or…
- Mucopolysaccharidosis type IIID Morquio syndrome due to deficiency of the enzyme N-acetylgalactosamine-6-sulfate sulfatase. See also…
- North Asian tick-borne rickettsiosis One of the tick-borne rickettsial diseases of the eastern hemisphere, similar to Rocky Mountain spotted…
- Melanoma, nodular One of the four clinical types of malignant melanoma, typically presents as a raised, distinct, bluish-black…
- Solar keratosis Synonymous with actinic keratosis. See: Keratosis, actinic
- Loeys-Dietz syndrome Loeys-Dietz syndrome: Loeys-Dietz syndrome is an inherited syndrome characterized by aortic aneurysms…
- Mendelian inheritance The manner in which genes and traits are passed from parents to their children. The four modes of Mendelian…
- Androgen insensitivity syndrome, complete A genetic disorder that makes XY fetuses insensitive (unresponsive) to androgens (male hormones). Instead…