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).
Meningococcal infection
Infection with the bacterium Neisseria meningitidis. (Neisseria was formerly called Meningococcus and the term 'meningococcal' is still entrenched.) Persons with a meningococcal infection may have any of several acute illnesses, including…
Read the definitionRandom terms
Show more- Titre Variant spelling of 'titer' -- the degree of dilution of a substance such as an antibody, reflecting the…
- United States Public Health Service The agency responsible for the public health of the American people. The Public Health Service (PHS)…
- Medical etymology The origin of medical words and terms. Etymology is an account of the origins and the developments in the…
- Ubiquitin A small but extremely important protein that acts the 'kiss of death' to other proteins. Ubiquitin consists…
- Outer ear There are three sections of the ear: the outer ear, the middle ear, and the inner ear. The outer ear looks…
- Genome, C. elegans See: C. elegans genome.
- Prosthodontist A dentist with special training in making replacements for missing teeth or other structures of the oral…
- A- Prefix very much employed in medicine and all of the health sciences, indicating 'not, without, -less' as…
- Sclerosis, multiple The injection of a chemical irritant into a vein to sclerose ("harden") it. The chemical irritates the lining…
- Examination, digital rectal (DRE) An exam done to detect abnormalities that can be felt (palpated) from within the rectum. The doctor inserts a…
- Catecholamine Pronounced cat·e·chol·amine. An amine derived from the amino acid tyrosine -- examples include epinephrine…
- Crossed embolism Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolize) , they travel…