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).
Tophus
A nodular mass of uric acid crystals. Tophi are characteristically deposited in different soft tissue areas of the body in gout. The word tophus comes via Latin from the Greek tophos meaning a porous volcanic stone. In chronic (tophaceous)…
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Show more- A.c. Abbreviation on a prescription meaning before meals; from the Latin 'ante cibum', before meals. This is one…
- Embryonic hemoglobin Hemoglobin E, the normal embryonic hemoglobin, the main type of hemoglobin found in the human embryo. The E…
- Gareis-Mason syndrome An inherited (genetic) syndrome with characteristic features including (1) neurologically: mental retardation…
- Keratoderma hereditarium mutilans See: Vohwinkel syndrome
- Ulcer, gastric A hole in the lining of the stomach corroded by the acidic digestive juices which are secreted by the stomach…
- Endemic typhus Murine typhus, an acute infectious disease with fever, headache, and rash, all quite similar to, but milder…
- Biopsy, liver See: Liver biopsy
- Indifferent gonad In embryonic life, the gonad in males and females is initially identical. This gonad is said to be…
- Trimester The nine months of pregnancy is traditionally divided into three trimesters: distinct periods of roughly…
- Sigmoid In human anatomy, the lower colon (the lower portion of the large bowel). 'Sigmoid' is short for 'sigmoid…
- Infection, meningococcal See: Meningococcal infection
- Amplification, DNA The production of multiple copies of a sequence of DNA. Repeated copying of a piece of DNA. DNA amplification…