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).
Optic disc
The circular area in the back of the inside of the eye where the optic nerve connects to the retina. Also called the optic nerve head
Read the definitionRandom terms
Show more- Internal medicine A medical specialty dedicated to the diagnosis and medical treatment of adults. A physician who specializes…
- Antimony A silvery-white earth metal which at high levels can be toxic. Antimony occurs naturally in the earth…
- Sperm motility The percentage of all moving sperm in a semen sample. In a semen sample, 50% or more of the sperm should…
- Bariatrician A physician practicing bariatrics, the field of medicine concerned with weight loss. Also called a bariatric…
- Western blot A technique in molecular biology, used to separate and identify proteins. Called a Western blot merely…
- Chest film Most common X-ray used to detect abnormalities in or within the thoracic cage, such as the lungs, heart…
- Kit, disaster supplies You and your family can cope best by preparing for disaster before it strikes. One way to prepare is by…
- Thrombin A key clot promoter, thrombin is an enzyme that presides over the conversion of a substance called fibrinogen…
- Sib Sibling
- Glans and foreskin, inflammation of the In the uncircumcised male, balanitis (inflammation of the glans, the rounded head of the penis) and posthitis…
- Popcorn worker lung See: Popcorn worker's lung
- Race-based drug A drug designed for a particular racial group. The first race-based drug was BiDil, a combination of two old…