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).
Haemophilus influenzae type B (HIB) immunization
This kind of immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria responsible for a range of serious 'invasive' diseases including meningitis with potential brain damage and epiglottitis…
Read the definitionRandom terms
Show more- Streptococcus pneumoniae (pneumococcus) A type of bacterium that comes in pairs and is shaped like a lancet (a surgical knife with a short wide…
- Helminthphobia An abnormal and persistent fear of being infested with parasitic worms called helminths. The eggs of these…
- Stomach, Pavlov A pouch fashioned surgically from part of the stomach (but isolated from the rest of the stomach) that opens…
- Spanish flu A pandemic of influenza A (H1N1) in 1918-19 that caused the highest number of known flu deaths. More than…
- Deficiency, niacin See: Pellagra
- HAVS Hand-arm vibration syndrome
- Liter A metric measure of capacity that, by definition, is equal to the volume of a kilogram of water at 4 degrees…
- Darwin, Charles English naturalist (1809-82), considered the father of evolution. Darwin voyaged aboard the Beagle to see the…
- Pressor Causing a rise in blood pressure. A pressor base is a substance (chemically classified as a base) capable of…
- Block, caudal See Caudal anesthesia
- Dopamine An important neurotransmitter (messenger) in the brain. Dopamine is classified as a catecholamine (a class of…
- HIV Acronym for the Human Immunodeficiency Virus, the cause of AIDS (acquired immunodeficiency syndrome). HIV has…