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).
Duodenum
The first part of the small intestine. The duodenum extends from the pylorus at the bottom of the stomach to the jejunum, the second part of the small intestine. The duodenum is a common site for the formation of peptic ulcers. We often…
Read the definitionRandom terms
Show more- Ophthalmology The art and science of eye medicine.
- Ornithophobia An abnormal and persistent fear of birds. Sufferers from ornithophobia experience undue anxiety about…
- Transcription Making an RNA copy from a sequence of DNA (a gene). Transcription is the first step in gene expression
- Bee sting Stings from bees and other large stinging insects such as yellow jackets, hornets and wasps can trigger…
- Ague A fever (such as from malaria) that is marked by paroxysms of chills, fever, and sweating recurring regular…
- Gametic selection Preferential selection of gametes (germ cells -- sperm or eggs). Gametic selection is a mechanism of…
- Venomous 1. Full of venom. 2. Having venom, like some snakes and insects. 3. By extension, noxious, as a venomous…
- Disease, Fong See Nail-patella syndrome
- Mouse, white-footed See: White-footed mouse
- Apposition The word 'apposition' has several senses including the act of adding or accretion and also the putting of…
- Cancer, ovarian Cancer of the ovary, the egg sac of females. The anatomic location of the ovaries: NTER>Most ovarian growths…
- Acupressure The application of pressure on specific points on the body to control symptoms such as pain or nausea…