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).
Reticulocyte
A young red blood cell that usually remains in the bone marrow with only a few venturing out into the circulating blood. The number of reticulocytes in blood rises when red cell production is unusually vigorous, as after a major bleeding…
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Show more- Node, AV AV node: The AV node (AV stands for atrioventricular) is an electrical relay station between the atria (the…
- Onchocerciasis River blindness, a disease caused by a parasitic worm (Onchocerca volvulus) which is transmitted to persons…
- Passive immunity Immunity produced by the transfer to one person of antibodies that were produced by another person…
- Intraepithelial Within the layer of cells that forms the surface or lining of an organ
- Selective mutism An inability to speak in certain situations. See also apraxia, autism, mutism.
- Carotene, beta An antioxidant, a substance that protects cells against oxidation damage which, it is thought, can lead to…
- Hyperbaric Pertaining to gas pressures greater than 1 atmosphere* of pressure. Also pertaining to solutions that are…
- Bladder infection Infection of the urinary bladder. Some people are at more risk for bladder and other urinary tract infections…
- Barium swallow An upper gastrointestinal series (barium swallow) is an X-ray test used to define the anatomy of the upper…
- UAG A triplet consisting of uracil, adenine, guanine, in that order, that acts as a stop codon in messenger RNA…
- Giant platelet syndrome Nard-Soulier syndrome): This condition is a primary problem of platelets in which the platelets lack the…
- Glial cell A supportive cell in the central nervous system -- the brain and spinal cord. Glial cells do not conduct…