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).
Sex-determining region, Y
See: Y sex-determining region
Read the definitionRandom terms
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- Brittle bone disease Osteogenesis imperfecta, not one but a group of genetic diseases, all of which affect collagen, a key…
- Acne rosacea Acne, rosacea: This term is actually a misnomer! The appropriate term is simply rosacea which is a chronic…
- Hypnic jerk The common normal phenomenon of jerking awake, usually accompanied by a feeling of falling, just as one is…
- Syndrome, sicca An autoimmune diseases, also known as Sjogren syndrome, that classically combines dry eyes, dry mouth, and…
- Pseudoxanthoma elasticum Pseudoxanthoma elasticum: (Abbreviated PXE). A genetic disorder characterized by degeneration of elastic…
- Condom, male The male condom is a sheath placed over the erect penis before penetration, preventing pregnancy by blocking…
- Secretase, beta- An enzyme that appears to be directly involved in the early development of Alzheimer's disease…
- Swallowing syncope The temporary loss of consciousness upon swallowing. Syncope is the temporary loss of consciousness or, in…
- Cyanosis A bluish color of the skin and the mucous membranes due to insufficient oxygen in the blood. For example, the…
- Tamponade, esophagogastric A procedure in which a balloon is inflated within the esophagus or stomach to apply pressure on bleeding…
- PMS (PreMenstrual Syndrome) See Premenstrual syndrome