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).
Avastin
The first drug in a new class designed to treat cancer by compromising its blood supply. Avastin (bevacizumab) is believed to prevent angiogenesis, the formation of new blood vessels that supply the tumor with blood, oxygen and other…
Read the definitionRandom terms
Show more- Disorder, cephalic A congenital condition that stems from damage to, or abnormal development of, the budding nervous system…
- Otolaryngologist A physician specialized in diagnosing and treating diseases of the head and neck, especially those involving…
- Mediastinum The area between the lungs. The organs in this area include the heart and its large veins and arteries, the…
- Disorder, bipolar See: Bipolar disorder
- Arrhythmias, slow Abnormally slow heart rhythms, medically termed bradycardia
- UAA A triplet consisting of uracil, adenine, adenine, in that order, that acts as a stop codon in messenger RNA…
- Sjogren syndrome Sjogren syndrome: An autoimmune disease that classically combines dry eyes, dry mouth, and another disease of…
- Five-day fever Fever: Also called trench fever, this is a disease borne by body lice that was first recognized in the…
- Classification of diseases See: Disease nomenclature
- Periosteoma A benign tumor arising from the periosteum, the dense membrane composed of fibrous connective tissue that…
- Cerebral hemispheres The two halves of the cerebrum, the largest part of the brain.
- Nerve, sciatic The largest nerve in the body, the sciatic nerve begins from nerve roots in the lumbar part of the spinal…