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).
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, paraneoplastic See: Paraneoplastic syndrome
- Oxygenate To add oxygen to any chemical or physical system, including the human body. Oxygenate can also refer to the…
- Floppy baby syndrome A general medical reference to an abnormal condition of newborns and infants manifested by inadequate tone of…
- Economy class syndrome The formation of blood clots in veins deep within the legs -- deep vein thrombosis -- occurring during (or…
- Prostate, nodular hyperplasia See: Benign prostatic hyperplasia
- Black Death The Medieval black plague that ravaged Europe and killed a third of its population. It was due to the plague…
- Nerve compression 'Pinching' a nerve by putting too much pressure on it. For example, the sciatic nerve may be painfully…
- Weighing, underwater See: Underwater weighing
- Oryzomys palustris See: Rice rat
- Recreational water illness An illness that is spread by swallowing, breathing, or having contact with contaminated water from swimming…
- Vinyl chloride A substance used in manufacturing plastics that is known to be toxic and carcinogenic (cancer-causing)…
- Drug Enforcement Administration (DEA) Every prescription written in the United States bears a DEA number, that of the prescribing doctor, the DEA…