MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Sleep paralysis
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 the…
Read the definitionRandom terms
Show more- Ab ovo Latin expression for 'from the beginning.' Ab ovo literally means 'from the egg.
- STL2 Stickler syndrome, type II. See: Stickler syndrome
- Cancer, testicles Cancer of the male sex organ (testicle) that normally produces the hormone testosterone. One of the most…
- Seizure, myoclonic See: Myoclonic seizure
- Analysis A psychology term for processes used to gain understanding of complex emotional or behavioral issues
- Birthmark A persistent visible mark on the skin that is evident at birth or shortly thereafter. A birthmark is often…
- Cancer, stomach Cancer of the stomach, the main organ that holds food for digestion. Worldwide, stomach cancer is the second…
- Vein, large saphenous The larger of the two saphenous veins, the principal veins that run up the leg superficially (near the…
- Transsexual A person who desires or has achieved transsexualism. See transsexualism
- Cat cry syndrome A disorder caused by the loss of part of the short (p) arm from chromosome 5. Also called the cri du chat (or…
- Tampon A tampon is a pack or pad used to plug, to stanch, to stop the flow of blood or other fluids. The tampon may…
- Scleroconjunctival Pertaining to both the sclera and the conjunctiva. The sclera, a tough white outer coat that covers most of…