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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Randomized controlled trial
(RCT) A study in which people are allocated at random (by chance alone) to receive one of several clinical interventions. One of these interventions is the standard of comparison or control. The control may be a standard practice, a…
Read the definitionRandom terms
Show more- Cardiovascular disease Disease affecting the heart or blood vessels. Cardiovascular diseases include arteriosclerosis, coronary…
- Gene array analysis A way of analyzing the differential expression of thousands of species of mRNA (messenger RNA) at the same…
- Down-regulation See: Downregulation
- Snake stick A stick or rod with a snake curled around it is the staff (the rod) of Aesculapius (also called Asklepios)…
- Blood group An inherited feature on the surface of the red blood cells. A series of related blood types constitute a…
- Vasodilation Widening of blood vessels resulting from relaxation of the muscular wall of the vessels. What widens is…
- Vincent infection This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Fatty aldehyde dehydrogenase deficiency Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a…
- Hantavirus A group of viruses that cause hemorrhagic fever and pneumonia. The Hantaviruses include the Hantaan virus…
- Carcinoma, islet cell See: Islet cell cancer
- DXA bone scan See: DXA
- Benzodiazepines A class of drugs that act as tranquilizers and are commonly used in the treatment of anxiety. Benzodiazepines…