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).
Paralysis, sleep
Sleep: A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move for a few minutes, most often upon falling asleep or waking up. Sleep paralysis is due to an ill-timed disconnection between…
Read the definitionRandom terms
Show more- Puncture, lumbar A lumbar puncture or 'LP' is a procedure whereby spinal fluid is removed from the spinal canal for the…
- Allergy Allergy: A misguided reaction to foreign substances by the immune system, the body system of defense against…
- Nerve, optic The optic nerve connects the eye to the brain. The optic nerve carries the impulses formed by the retina. The…
- Fragile site A term devised in 1969 by Frederick Hecht to denote a heritable point on a chromosome where gaps and breaks…
- Islet cell carcinoma See: Islet cell cancer
- Mathematics disorder A condition characterized by math skills that are significantly below normal, given the person's age…
- Operation, Glenn See: Glenn shunt
- LOD score In genetics, a statistical estimate of whether two loci (the sites of genes) are likely to lie near each…
- Hematoma, intracerebral See: Intracerebral hematoma
- ECST ECST stands for the exercise cardiac stress test, the most widely used cardiac (heart) screening test. In an…
- Power of attorney, durable This is a type of advance medical directive in which legal documents provide the power of attorney to another…
- Reiki ('RAY-kee') A Japanese word representing Universal Life Energy. Reiki is based on the belief that when…