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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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).
Catechol-O-methyltransferase
COMT. An enzyme that catalyzes the degradation of catecholamines, including the neurotransmitters dopamine, epinephrine, and norepinephrine. COMT is also important in the metabolism of catechol drugs used in the treatment of hypertension…
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Show more- Creutzfeldt-Jakob disease (CJD) Spontaneous tearing in parallel with the normal salivation of eating. The crocodile tears syndrome occurs…
- Adventitia The outermost connective tissue covering of any organ, vessel, or other structure. For example, the…
- Encephalitis, LAC LaCrosse encephalitis, one of the main types of encephalitis caused by an arbovirus in the US. An arbovirus…
- Pouch, rectovaginal An extension of the peritoneal cavity between the rectum and back wall of the uterus. The term 'cul-de-sac,'…
- Iron deficiency anemia Anemia: The most common known form of nutritional disorder in the world, iron deficiency results in anemia…
- Esophagectomy An operation to remove a portion of the esophagus
- Analog In biochemistry, a substance that is similar, but not identical, to another
- Sutton's law In medicine, the principle of going straight to the most likely diagnosis. The law is named for the bank…
- Microphthalmia syndrome, Lenz Tattooing.
- Benzene A sweet smelling, highly toxic hydrocarbon. Long-term exposure to benzene is known to cause anemia and…
- Neuropsychologist A psychologist who has completed special training in the neurobiological causes of brain disorders, and who…
- Indifferent gonad In embryonic life, the gonad in males and females is initially identical. This gonad is said to be…