MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
R (symbol)
This much-used symbol has many meanings in medicine. They include: > >Respiration: a nurse's note of 'R20' is shorthand for 20 respirations (breaths) per minute. >Right: A doctor's note of a burn on the 'R digit 5' places the burn on the…
Read the definitionRandom terms
Show more- End-of-life assistant See: Doula (the second meaning)
- COPD Two chambers in the penis which run the length of the organ and are filled with spongy tissue. Blood flows in…
- Strollerobics The supportive framework of an organ (or gland or other structure), usually composed of connective tissue…
- BMPR1A A gene located on chromosome 10 in band 10q22.3 that encodes bone morphogenic protein receptor 1A, a kinase…
- Chromatin modelling See: Chromatin remodeling
- Bipolar disorder Dding=0 width='100%' border=0> ODYvAlign=top bgColor=#cccccc colSpan=2> vAlign=top width='100%'…
- Achilles tendon A tough sinew that attaches the calf muscle to the back of the heel bone. The Achilles tendon is one of the…
- Acute myocardial infarction A heart attack. The term 'myocardial infarction' focuses on the heart muscle, which is called the…
- Synapsis The side-by-side and point-by-point pairing of homologous chromosomes during meiosis
- Thoracic vertebrae The 12 thoracic vertebrae are situated between the cervical (neck) vertebrae and the lumbar vertebrae. The…
- Malformation A structural defect in the body due to abnormal embryonic or fetal development. There are many types of…
- Intraepithelial Within the layer of cells that forms the surface or lining of an organ