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).
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. pestis mainly infects…
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Show more- End-of-life assistant See: Doula (the second meaning)
- Infection, Neisseria An infection acquired in a hospital. Specifically an infection that was not present or incubating prior to…
- Syncephaly Conjoined twins whose heads are joined together. From syn-, together + -cephaly, head = heads together. Also…
- Stroma The supportive framework of an organ (or gland or other structure), usually composed of connective tissue…
- Y (in chemistry) The symbol for the element yttrium, an ultrarare metal named after Ytterby in southern Sweden. Yttrium has…
- Jaundice, hemolytic Jaundice, hemolytic: Jaundice caused by destruction of red blood cells. This can be an inborn condition…
- Stepfather The husband of a woman who had a child by another man
- Familial amyotrophic lateral sclerosis Amyotrophic lateral sclerosis (ALS) in which there a family history of the disease. Familial ALS constitutes…
- Inguinal canal A passage in the lower anterior abdominal wall which in the male allows passage of the spermatic cord and in…
- Femoral Having to do with the femur or, less often, the thigh. As in the femoral head (the head of the femur), the…
- Precancerous Pertaining to something that is not yet overtly cancerous, but appears to be on its way to becoming a cancer…
- NIDDK (Nat'l Institute of Diabetes and Kidney) And Kidney Diseases): One of the National Institutes of Health in the U.S., the NIDDK has a multisystem name…