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).
Syndrome, irritable bowel (IBS)
A common gastrointestinal disorder (also called spastic colitis, mucus colitis or nervous colon syndrome), IBS is an abnormal condition of gut contractions (motility) characterized by abdominal pain, bloating, mucous in stools, and…
Read the definitionRandom terms
Show more- Sprain An injury to a ligament that results from overuse or trauma. Sprains occurs when there is a stretch or tear…
- Extremophile An organism that lives under extreme conditions. An example of an extremophile is Methanococcus jannaschii, a…
- Implantation, seed Radiation treatment given by placing radioactive material contained within a small cylindrical shell directly…
- Sexually transmitted infection An infection that can be transferred from one person to another through sexual contact. In this context…
- Diseases, inherited metabolic Also called inborn errors of metabolism, these are heritable (genetic) disorders of biochemistry. Examples…
- White blood cell count Kocyte count): The number of white blood cells (WBCs) in the blood. The WBC is usually measured as part of…
- Neutrophil A type of white blood cell, specifically a form of granulocyte, filled with neutrally-staining granules, tiny…
- Stercolith See: Fecalith
- UDP-glucuronosyltransferase A liver enzyme essential to the disposal of bilirubin (the chemical that results from the normal breakdown of…
- Heart test, EPS ElectroPhysiologic Study of the heart, a test of the electrical conduction system of the heart (the system…
- Echopraxia The involuntary imitation of the movements of another person. Echopraxia is a feature of schizophrenia…
- Thyroid A blood protein that binds with the thyroid hormone thyroxine (T4).