MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Causes of cancer
Cancer is a group of more than 100 different diseases. Benign tumors are not cancer; malignant tumors are cancer. Most cancers are named for the type of cell or the organ in which they begin. When cancer spreads (metastasizes), the new…
Read the definitionRandom terms
Show more- Photodynamic therapy Photodynamic therapy: A form of cancer treatment using an photosensitizing agent administered intravenously…
- Aerotitis Middle ear problems due to changing atmospheric pressures, as when a plane descends to land. The problems…
- Carcinoma of the breast, infiltrating ductal Breast, infiltrating ductal: Infiltrating ductal carcinoma is one of several recognized specific patterns of…
- Pimples Small papules or pustules. See: Pimple
- Screening mammogram Mammogram: A mammogram (an X-ray of the breast) in women who have no signs of breast cancer. It usually…
- Endothelial progenitor cell A primitive cell made in the bone marrow that can enter the bloodstream and go to areas of blood vessel…
- Infection The growth of a parasitic organism within the body. (A parasitic organism is one that lives on or in another…
- Adverse event In pharmacology, any unexpected or dangerous reaction to a drug
- Blepharospasm Involuntary forcible closure of the eyelids. The first symptom may be uncontrollable blinking. Only one eye…
- Clone Literally a fragment, the word in modern medical science has come to mean a replica, for example, of a group…
- Shock Shock: In medicine, shock is a critical condition brought on by a sudden drop in blood flow through the body…
- LAC encephalitis LaCrosse encephalitis, one of the main types of encephalitis caused by an arbovirus in the US. An arbovirus…