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).
Heterokaryon
A cell with two separate nuclei formed by the experimental fusion of two genetically different cells. (Heterokaryons, for example, composed of nuclei from Hurler syndrome and Hunter syndrome, both diseases of mucopolysaccharide metabolism…
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Show more- Compression fracture A fracture caused by compression, the act of pressing together. Compression fractures of the vertebrae are…
- Chronic leukemia Cancer of the blood cells (leukemia) that progresses slowly
- Premenstrual Just before the start of menstruation. As in a premenstrual headache
- System, locomotive The system that permits locomotion, movement from one place to another. The key components of this system are…
- Agenesis of the corpus callosum A congenital abnormality (a birth defect) in which there is partial or complete absence (agenesis) of the…
- Dressler syndrome Pericarditis (inflammation of the pericardium, the sac-like covering of the heart) after a heart attack…
- Sign Any objective evidence of disease. Gross blood in the stool is a sign of disease. It can be recognized by the…
- Tinea unguium >People with diabetes; >People with disease of the small blood vessels (peripheral vascular disease); and…
- Vitamin B1 Thiamine. Vitamin B1 (thiamine) acts as a coenzyme in the metabolism of the body. Deficiency of thiamine…
- Denture An artificial set of teeth that can be removed
- Ovum An egg in the ovary of the female. This egg is called the female 'gamete' or sex cell. It combines with the…
- Brain swelling See: Cerebral edema