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).
Catalyst
A substance that speeds up a chemical reaction but is not consumed or altered in the process. Catalysts are of immense importance in chemistry and biology. All enzymes are catalysts that expedite the biochemical reactions necessary for…
Read the definitionRandom terms
Show more- Scan, computerized tomography Pictures of structures within the body created by a computer that takes the data from multiple X-ray images…
- Telomerase An enzyme concerned with the formation, maintenance, and renovation of telomeres, the ends of chromosomes…
- WHO (World Health Organization) A type of chromosome rearrangement, also called a Robertsonian translocation, in which there is fusion of an…
- Acquired Anything that is not present at birth but develops some time later. In medicine, the word 'acquired' implies…
- Palmar surface The palm or grasping side of the hand
- Bone marrow transplant A procedure in which bone marrow that is diseased or damaged is replaced with healthy bone marrow. The bone…
- BPD Stands for Borderline Personality Disorder, a serious mental illness characterized by pervasive instability…
- Monoarticular Involving just one joint. As opposed to polyarticular (affecting many joints). From the Latin 'articulus,'…
- Brown, Louise The world's first test-tube baby, conceived by in vitro fertilization and born on July 25, 1978
- Juvenile laryngeal papillomatosis Juvenile laryngeal papillomatosis involves the growth of numerous warty growths on the vocal cords in…
- Pleural effusion, fetal See: Fetal pleural effusion
- Coloscopy See: Colonoscopy