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).
Exanthem subitum
Means a sudden rash. A viral disease of infants and young children with sudden onset of high fever which lasts several days and then suddenly subsides leaving in its wake a fine red rash. The causative agent is herpesvirus type 6 so the…
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Show more- Heart transplant Heart transplant: A surgical procedure in which a diseased heart is replaced with a healthy heart from a…
- Sepsis Commonly called a 'blood stream infection.' The presence of bacteria (bacteremia) or other infectious…
- Pachyonychia congenita of the Jadassohn-Lewandowsk E: This is a type of pachyonychia congenita (elephant nails from birth). The characteristic features include…
- Diethylstilbestrol The earliest synthetic (man-made) form of the hormone estrogen. Diethylstilbestrol (DES) was once widely…
- Hemoglobinuria The presence of free hemoglobin in the urine, an abnormal finding, that may make the urine look dark…
- Sperm A sperm is the male 'gamete' or sex cell. It combines with the female 'gamete,' called an ovum, to form a…
- Thyroplasty A surgical technique designed to improve the voice by altering the cartilages of the larynx (the voice box)…
- Erythropoietin (EPO) A hormone produced by the kidney that promotes the formation of red blood cells in the bone marrow. EPO is a…
- Metabolic syndrome Metabolic syndrome: A constellation of conditions that place people at high risk for coronary artery disease…
- Cor biloculare A two-chambered heart. Cor biloculare is due to failure of development of the walls that normally separate…
- Nipple, supernumerary An extra nipple. Supernumerary nipples are usually smaller than normal and vestigial (nonfunctional, without…
- Psoralen photochemotherapy See: PUVA