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).
Paracentesis
The removal of fluid from a body cavity using a needle, trocar, cannula, or other hollow instrument. A paracentesis may be diagnostic or therapeutic as, for example, in ascites where there is free fluid in the abdominal (peritoneal)…
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Show more- T-8 cells T cells that express the CD8 transmembrane glycoprotein (CD8+ T cells). They close down the immune response…
- Malignancy A tumor that is malignant, that is cancerous, that can invade and destroy nearby tissue, and that may spread…
- Therapy, behavior A treatment program that involves substituting desirable behavior responses for undesirable ones
- Liver cancer, adult primary A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular…
- Septum A word borrowed from the Latin 'saeptum' meaning a 'dividing wall or enclosure.
- Bougie A thin cylinder of rubber, plastic, metal or another material that a physician inserts into or though a body…
- Family planning, natural Also known as fertility awareness, periodic abstinence and the rhythm method, this approach entails not…
- Hodgkin, Dorothy British crystallographer and Nobel Prize winner (1910-1994). Dorothy Crowfoot, as she was born, was educated…
- Marker, tumor Tumor markers are substances that can be detected in higher-than-normal amounts in the blood, urine, or body…
- Internal carrier In the drug trade, an individual used to transport internally concealed illicit drugs. Also called a body…
- James Watson See: Watson, James
- Nerve, first cranial The first cranial nerve is the olfactory nerve, the nerve that carries impulses for the sense of smell from…