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).
Varicose vein
A dilated (widened) tortuous (twisting) vein, usually involving a superficial vein in the leg, often associated with incompetency of the valves in the vein. These visible and bulging veins are often associated with symptoms such as tired…
Read the definitionRandom terms
Show more- Microsomia Too small a body. A child with microsomia has significant undergrowth. The prefix 'micro-' is derived from…
- Large bowel Another name for the large intestine. The word 'bowel' originated from the Latin 'botulus' meaning 'sausage.'
- Paralysis, infantile (polio) Infantile paralysis is an old synonym for poliomyelitis, an acute and sometimes devastating viral disease…
- Heel stick A procedure in which a newborn baby's heel is pricked and then a small amount of the blood is collected…
- Transcription factor A protein that controls when genes are switched on or off -- whether genes are transcribed or not…
- Gland, bulbourethral See: Bulbourethral gland
- Neuroma, acoustic A benign tumor that may develop on the hearing and balance nerves near the inner ear. The tumor results from…
- Corneal topography Also known as videokeratography or corneal mapping, corneal topography is a method of computer-assisted…
- Corpse A dead body. The term corpse is more often used in in mystery stories than in medicine which, for obscure…
- Monaural Relating to one ear. Hearing aids may be monaural (for one ear) or binaural (for both ears). From monos…
- Gene, evolutionarily conserved A gene that has remained essentially unchanged throughout evolution. Conservation of a gene indicates that it…
- Familial polyposis of colon, autosomal recessive See: MYH