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).
C4 (cervical vertebra)
The fourth cervical (neck) vertebra from the top
Read the definitionRandom terms
Show more- Sweat chloride test Sweat chloride test: A test for cystic fibrosis. See: Sweat test.
- Giant hypertrophic gastritis A premalignant disorder of the stomach characterized by overgrowth of the stomach lining (the gastric mucosa)…
- Minor A minor is someone who is not yet an adult and, in a larger sense, it is something that is less than…
- APT1 See: FAS gene
- Scale, skin A thin piece of the outermost layer of skin resembling a fish scale. They represent a heaping up of the…
- Atherogenesis The process of forming atheromas, plaques in the inner lining (the intima) of arteries
- Craniosynostosis Premature fusion of the cranial sutures (the fibrous joints between the bones of the skull) in an infant…
- Photokeratitis A burn of the cornea (the clear front surface of the eye) by ultraviolet B rays (UVB). Also called radiation…
- Sepsis Commonly called a 'blood stream infection.' The presence of bacteria (bacteremia) or other infectious…
- Undifferentiated cancer Cancer: A cancer in which the cells are very immature and 'primitive' and do not look like cells in the…
- Device, medical See: Medical device
- Electron beam computerized tomography (EBCT) A new (and controversial) noninvasive test for the detection of coronary artery disease (CAD). EBCT, or…