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).
Y. pestis
Yersinia pestis, the bacteria that causes the bubonic plague which in the year 541 (as the Black Death) and later in the Middle Ages decimated Europe. The effects of the plague are described in the nursery rhyme 'We all fall down.' Y…
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Show more- Gene, Y-linked A gene on the Y chromosome. (Y-linkage is analogous to X-linkage (the presence of a gene on the X chromosome)…
- Nucleosome Structure responsible in part for the compactness of a chromosome. Each nucleosome consists of a sequence of…
- Ophthalmoscopy Examination of the interior of the eye, including the lens, retina and optic nerve, by indirect or direct…
- DISH Diffuse idiopathic skeletal hyperostosis
- Superaspirin A class of drugs that act in certain but not all ways like aspirin. Also known as Cox-2 inhibitors, these…
- Abortion, artificial An abortion that is brought about intentionally. Also called an induced or therapeutic abortion. As opposed…
- Milligray A unit of absorbed radiation equal to 0.001 gray. (A gray is the dose of one joule of energy absorbed per…
- Hematopoiesis The production of all types of blood cells generated by a remarkable self-regulated system that is responsive…
- Helper cell A type of T cell that participates in the immune response by recognizing foreign antigens and secreting…
- USPHS (United States Public Health Service) The agency responsible for the public health of the American people. The Public Health Service (PHS)…
- Medicare Part B The Medicare program that covers physician and outpatient services. Medicare is the United States…
- Spider fear See: Arachnophobia