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).
Hirschsprung disease
Hirschsprung disease: A congenital abnormality (birth defect) of the bowel in which there is absence of the ganglia (nerves) in the wall of the bowel. Nerves are missing starting at the anus and extending a variable distance up the bowel…
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Show more- Hyperventilation Overbreathing. This can cause dizziness, lightheadedness, weakness, shortness of breath, a sense of…
- Syndrome, Werner A premature aging disease that begins in adolescence or early in adulthood and results in apparent old age by…
- Mesentery A fold of tissue which attaches organs to the body wall. The word mesentery usually refers to the small bowel…
- Thrombosis, deep vein (DVT) Blood clotting in the veins of the inner thigh or leg. In air travel, DVT is the 'economy-class syndrome.'…
- Syndrome, Ramsay Hunt See: Ramsay Hunt syndrome
- Macrovascular Pertaining to the macrovasculature, the portion of the vasculature of the body comprising the larger vessels…
- Nasoenteral tube See: Nasogastric tube
- Open-label trial A clinical trial in which researchers and participants know which drug or vaccine is being administered
- Quiescent Marked by a state of inactivity, repose, or tranquillity. For example, a quiescent stem cell is a stem cell…
- Disk, intervertebral See: Intervertebral disk
- Glans 1) The glans penis, the rounded head of the penis. 2) The rounded head of the clitoris
- Thanatophobia An abnormal and excessive fear of death