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).
Braille system
A system of raised-dot writing devised by Louis Braille (1809-1852) for the blind in which each letter is represented as a raised pattern that can be read by touching with the fingers. The System: Each braille character or 'cell' is made…
Read the definitionRandom terms
Show more- DNA replication A wondrous complex process whereby the ('parent') strands of DNA in the double helix are separated and each…
- Body cell mass The total mass of all the cellular elements in the body which constitute all the metabolically active tissue…
- Syndrome, incontinentia pigmenti A genetic disease that begins soon after birth with the development of blisters on the trunk and limbs. These…
- Hypopharyngeal diverticulum See: Zenker diverticulum
- System, cardiovascular The circulatory system which comprises the heart and blood vessels. The system carries nutrients and oxygen…
- Polyuria The excessive passage of urine (at least 2.5 liters per day for an adult) resulting in profuse urination and…
- Claustrophobia An abnormal and persistent fear of closed spaces, of being closed in or being shut in, as in elevators…
- Tubercle A small tuber, a small lump or bump.
- ALS4 See: Amyotrophic lateral sclerosis 4
- Pyarthrosis Infectious arthritis. Pyarthrosis is typically caused by a bacterial infection in the joint. Diagnosis is…
- Midnight children Term applied sometimes to children with xeroderma pigmentosum, a genetic disease with such extraordinary…
- Recalcitrant Stubborn. For example, a recalcitrant case of pneumonia stubbornly resists treatment