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).
Coughing syncope
The temporary loss of consciousness upon coughing. Syncope is the temporary loss of consciousness or, in plain English, fainting. The situations that trigger this reaction are diverse and include having blood drawn, straining while…
Read the definitionRandom terms
Show more- Section, longitudinal A cut along the long axis of a structure
- NEI Stands for National Eye Institute, one of the US National Institutes of Health. NEI's mission is to 'conduct…
- Neurodermatitis Scaly patches of skin on the head, lower legs, wrists, or forearms caused by a localized itch such as from an…
- Hypertrophic gastritis See: Giant hypertrophic gastritis
- AChE (acetylcholinesterase) Abbreviation for acetylcholinesterase. See: Acetylcholinesterase
- Syndrome, goiter-deafness See Pendred syndrome
- Diabetic ketoacidosis High blood glucose with the presence of ketones in the urine and bloodstream, often caused by taking too…
- Hormone, antidiuretic (ADH) A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after…
- Heterochromatin Chromosomal material that is darkly staining and tightly coiled throughout the cell cycle and that is, for…
- Collateral knee ligament, medial The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- SRY Sex region Y, a region on the Y chromosome that determines the sex of the individual. SRY is necessary and…
- Methyl-CpG-binding protein-2 (MECP2) An enzyme which, when mutated, results in RTT (Rett syndrome), a genetic disease that is a uniform and…