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.
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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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Positive clinical trial
A clinical trial that shows that the new treatment has a large beneficial effect and is superior to standard treatment. See: Clinical trials. See also: Inconclusive clinical trial; Negative clinical trial; Non-inferior clinical trial
Read the definitionRandom terms
Show more- Deficiency, uroporphyrinogen decarboxylase See: UROD deficiency
- Trich- (prefix) Pertaining to hair. As in trichinosis, a disease due to the parasite Trichinella spiralis which was thought…
- Alcohol An organic chemical in which one or more hydroxyl (OH) groups are attached to carbon (C) atoms in place of…
- Psychogenic Caused by the mind or emotions.
- Othello psychosis See: Othello syndrome
- Chondroitin sulfate A glycosaminoglycan (formerly called a mucopolysaccharide) found in cartilage, bone, blood vessels and…
- Exacerbate To make worse. For example, smoking may exacerbate systemic lupus erythematosus
- Test, exercise treadmill A test (sometimes simply called a treadmill test or exercise test) in which a continuous electrocardiogram…
- Precocious Unusually early development, whether it be of intellectual powers, speech, physical traits, etc. Precocious…
- Aortic atresia Congenital absence of the normal valvular opening from the left ventricle of the heart into the aorta…
- Incontinence, urge A sudden involuntary contraction of the muscular wall of the bladder causing urinary urgency, an immediate…
- Chronic This important term in medicine comes from the Greek chronos, time and means lasting a long time. A chronic…