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).
Natural killer cell
A cell that can react against and destroy another cell without prior sensitization to it. Natural killer (NK) cells are part of our first line of defense against cancer cells and virus-infected cells. NK cells are small lymphocytes that…
Read the definitionRandom terms
Show more- Rectal (noun) An informal term for a digital rectal exam (DRE) done to detect abnormalities that can be felt (palpated)…
- Abscess A local accumulation of pus anywhere in the body. The following are some examples of abscesses: > >A skin…
- Bilharzia Disease caused by worms that parasitize people. Also called schistosomiasis. Three main species of these…
- Sclerosis Localized hardening of skin
- Paramyxovirus One of a group of RNA viruses that are responsible predominantly for acute respiratory diseases and are…
- ACS (American College of Surgeons) The American College of Surgeons was formed in 1913 under the aegis of Dr. John Miller Turpin Finney 'to…
- Type 2 myotonic dystrophy See: Myotonic dystrophy type 2
- Herpetiform virus A virus with the characteristic shape and behavior of a virus in the herpes family. Not all members of the…
- Ileus, meconium Obstruction of the intestine (ileus) due to overly thick meconium, the dark sticky stuff that is normally…
- Gorlin syndrome Name sometimes used for the LEOPARD syndrome which Dr. Robert J. Gorlin and colleagues recognized and…
- Aniline A chemical compound implicated, along with o-toluidine, in the causation of bladder cancer. Aniline and…
- Bar graph A visual display using bars to represent the relative size of different categories of a variable, with each…