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).
Peripheral nervous system
): That portion of the nervous system that is outside the brain and spinal cord. The peripheral nervous system (PNS) is one of the two major divisions of the nervous system. The other is the central nervous system (CNS) which is made up of…
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Show more- Coding DNA A sequence of DNA that codes for protein. Coding DNA sequences are separated by long regions of DNA called…
- Buccal mucosa The inner lining of the cheeks and lips.
- Catalyst A substance that speeds up a chemical reaction but is not consumed or altered in the process. Catalysts are…
- Zinc excess Too much zinc can cause gastrointestinal irritation (upset stomach), interfere with copper absorption and…
- Atrioventricular (AV) Pertaining to the atria (the upper chambers of the heart) and the ventricles (the lower chambers of the…
- Disease, Tsutsugamushi Scrub typhus, a mite-borne infectious disease caused by a microorganism, Rickettsia tsutsugamushi…
- Transudate A fluid that passes through a membrane which filters out much of the protein and cellular elements to yield a…
- Pancreatic beta cell A type of cell in the pancreas that makes insulin. The pancreas is a fish-shaped organ that stretches across…
- Hair-on-end skull Thin fine linear extensions radiating out from the skull that look on an X-ray like hair standing 'on-end'…
- Muscle relaxant Muscle relaxant is a term usually used to refer to skeletal muscle relaxants (drugs), which act on the…
- Drunkorexia A term coined to refer to condition of binge drinking combined with the typical self-imposed starvation seen…
- International AIDS Vaccine Initiative See: IAVI