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.
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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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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).
Circulation, fetal
The blood circulation in the fetus (the unborn baby). Before birth, the blood from the heart that is destined (in the pulmonary artery) for the lungs is shunted away from the lungs and returned to the greatest of arteries (the aorta). The…
Read the definitionRandom terms
Show more- Ames test A test developed in 1974 by Bruce N. Ames for identifying possible carcinogens by studying their mutagenic…
- Carbonmonoxyhemoglobin See: Carboxyhemoglobin
- Ophthalmoscope A lighted instrument, one of the most important tools of the physician, used to examine the interior of the…
- Crippled A medically outmoded and politically incorrect term that implies a serious loss of normal function through…
- Duodenal Pertaining to the duodenum, part of the small intestine. As in duodenal ulcer or duodenal biliary drainage
- RNAi Abbreviation for RNA interference. See RNA interference
- Varix An enlarged and convoluted vein, artery or lymphatic vessel.
- Munchhausen by proxy See: Munchhausen syndrome by proxy
- PMD Pelizaeus-Merzbacher disease
- Progestational hormone A synonym for the hormone progesterone. See: Progesterone
- Apolipoprotein A-I APOA-I. The major protein component of HDL (high density lipoprotein) and a relatively abundant plasma…
- Disruption sequence The events that occur when a fetus that is developing normally is subjected to a destructive agent such as…