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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Eustachian tube
The tube that runs from the middle ear to the pharynx. The function of the Eustachian tube is to protect, aerate and drain the middle ear (and mastoid). Occlusion of the Eustachian tube leads to the development of middle ear inflammation…
Read the definitionRandom terms
Show more- Electrophysiologic retinal testing Testing done to diagnose specific disorders of the retina, including inherited retinal diseases, the effects…
- Multiple sclerosis Multiple sclerosis: Abbreviated MS. A disease of the central nervous system (CNS) marked by numbness…
- Contraception, emergency See: Emergency contraception
- Right heart The heart is composed functionally of two hearts - the right heart and the left heart. The right heart…
- Headache, vascular A group of headaches felt to involve abnormal sensitivity of the blood vessels (arteries) in the brain to…
- Saffir-Simpson hurricane scale A 1-5 rating based on the hurricane's present intensity. This scale is used to give an estimate of the…
- Leukemia, acute lymphoblastic See: Acute lymphoblastic leukemia.
- FFN Fetal fibronectin
- Magnesia Named after a town in present day Turkey where an ore containing magnesium carbonate was mined. Milk of…
- Sune K. Bergstrom See: Bergstrüm, Sune K.
- Toe sign An important neurologic examination based upon what the toes do when the sole of the foot is stimulated. If…
- Cranial nerve, seventh The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in…