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).
Prior authorization
In pharmacy, a cost-containment procedure that requires a prescriber to obtain permission to prescibe a medication prior to prescribing it. Also called prior approval
Read the definitionRandom terms
Show more- Syndrome, Cornelia de Lange See: de Lange syndrome
- Necrotic Synonymous with dead. Necrotic tissue is dead tissue.
- Bisexual An individual who engages in both heterosexual and homosexual sexual relations. Bisexual can also refer to…
- Pool, gene The sum total of genes, with all their variations, possessed by a particular species at a particular time…
- Ovulation The release of the ripe egg from the ovary. The egg is released when the cavity surrounding it (the follicle)…
- Puerperal fever Fever that lasts for more than 24 hours within the first 10 days after a woman has had a baby. Puerperal…
- Olivopontocerebellar Pertaining to three particular parts of the brain -- namely, the oliva, the pons, and the cortex of the…
- Annexins The annexins are a family of proteins first described in 1990. All of the annexin proteins share the property…
- Windpipe Popular and familiar term for the scapula, the flat triangular bone at the back of the shoulder. The word…
- Altitude sickness >If possible, don't fly or drive to high altitude. Start below 10,000 feet (3,048 meters) and walk up. >If…
- Jaw The bones below the mouth (the mandible) and the bone above the mouth just above the mouth (the maxilla). The…
- Dark adaptometry A type of electrophysiologic retinal testing done to measure the period of time which passes before the…