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).
Giardia lamblia
Giardia lamblia: A parasite responsible for a contagious form of diarrhea. The parasite is most commonly transmitted through direct contact with infected feces or by eating food or drinking water contaminated by feces. Giardia is one of…
Read the definitionRandom terms
Show more- Pulmonary artery One of the two vessels which are formed as terminal branches of the pulmonary trunk and convey unaerated…
- Bed blocker A patient who uses a hospital bed for a long period of time because they are chronically ill. The patient…
- Typhus, classic See: Typhus, epidemic
- Examination, digital rectal (DRE) An exam done to detect abnormalities that can be felt (palpated) from within the rectum. The doctor inserts a…
- Prion A disease-causing agent that is neither bacterial nor fungal nor viral and contains no genetic material. A…
- Hepatoma Cancer originating in the liver, in liver cells. More often called hepatocarcinoma or hepatocellular…
- Lilliputian hallucination An hallucination in which things, people, or animals seem smaller than they would be in real life…
- Disease, Legg See Legg-Calve-Perthes disease
- Catechol-O-methyltransferase COMT. An enzyme that catalyzes the degradation of catecholamines, including the neurotransmitters dopamine…
- Gingivitis, fusospirillary This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- HCFA The Health Care Finance Administration, the part of the U.S. Department of Health and Human Services (HHS)…
- Drug, antihypertensive As the name clearly implies, a drug aimed at reducing high blood pressure (hypertension)