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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
RNA, ribosomal
A molecular component of a ribosome, the cell's essential protein factory. Ribosomal RNA (rRNA) fabricates polypeptides (assemblies of amino acids that make up proteins). A tiny particulate structure located in the cytoplasm of the cell…
Read the definitionRandom terms
Show more- Hepatitis, non-A, non-B The old name for hepatitis C when the causative virus had not been identified but it was known not to be…
- Magendie, foramen of An opening from the fourth ventricle, which is one in a system of four communicating cavities called…
- Laser coagulation The coagulation (clotting) of tissue using a laser. A coagulation laser produces light in the visible green…
- EMG Electromyogram
- Biological safety level 2 Level 2 biosafety
- Syndrome, phantom limb See Phantom limb syndrome
- Gross hematuria Hematuria means blood in the urine and gross hematuria refers to hematuria that is so plentiful that it is…
- Stepmother The wife of a man who had a child by another women. See: Novercal
- Cord, spinal See: Spinal cord
- Hepatitis G A virus first identified in 1995 that is genetically related to the hepatitis C virus but which does not…
- Surgery, YAG laser The use of a YAG (yttrium-aluminum-garnet) laser to do surgery. One use for a YAG laser in surgery is to…
- Acetabular labrum Acetabular labrum: A ring of fibrocartilage (fibrous cartilage) that runs around the acetabulum (cup) of the…