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).
Paraskevidekatriaphobia
Fear of Friday the 13th. The word 'paraskevidekatriaphobia' was devised by Dr. Donald Dossey who told his patients that 'when you learn to pronounce it, you're cured!'
Read the definitionRandom terms
Show more- Gyrus occipitotemporalis medialis See: Lingual gyrus
- Nodes, Osler's A diagnostic sign of bacterial infection of the heart (subacute bacterial endocarditis). These are small (the…
- Deficiency, UDP-glucuronosyltransferase Underactivity of a liver enzyme that is essential to the disposal of bilirubin (the chemical that results…
- CD4 count, absolute See: Absolute CD4 count
- Disease-free survival See: Multiple sclerosis.
- Chlortetracycline The first drug of the tetracycline family, to be introduced (in 1948). For more information, see: Tetracycline
- Bone marrow transplant A procedure in which bone marrow that is diseased or damaged is replaced with healthy bone marrow. The bone…
- Darwin, Charles English naturalist (1809-82), considered the father of evolution. Darwin voyaged aboard the Beagle to see the…
- Resorb Literally, to absorb again. To lose substance. Some of a tooth may be resorbed
- Upper GI series Upper GI series: A series of x-rays of the esophagus, stomach, and small intestine (upper gastrointestinal…
- Dissection, neck Surgery in which the neck is opened -- to 'dissect' means to 'cut apart' -- in order to identify, examine…
- Glutamic acid An amino acid, one of the 20 building blocks of protein. A nonessential amino acid, glutamic acid is present…