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).
Scan, spiral CAT
A conventional computerized axial tomography scan (CAT scan or CT scan) is an x-ray procedure which combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the…
Read the definitionRandom terms
Show more- Duct, ejaculatory See: Ejaculatory duct
- RNA virus A virus in which the genetic material is RNA. The RNA may be either double- or single-stranded. There are 6…
- Electrocardiogram Electrocardiogram: A recording of the electrical activity of the heart. An electrocardiogram is a simple…
- Florence R. Sabin See: Sabin, Florence R.
- Cyst, synovial, of the popliteal space A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined…
- Deficiency, protein C Protein C is a protein in plasma that enters into the cascade of biochemical events leading to the formation…
- Noncompliance The failure or refusal to comply: the failure or refusal to conform and adapt one's actions to a rule or to…
- Intradiskal electrothermal therapy A procedure designed to relieve back pain due to damage to the disks between the spine bones. Called IDET for…
- Q.h. (on prescription) Abbreviation for 'every hour.' On a prescription or doctor's hospital orders, q.h. means every hour. Also…
- Kidney cancer Kidney cancer: Malignancy of the kidney, the organ that is primarily responsible for the removal of metabolic…
- REM sleep Sleep: REM sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during REM…
- SRY Sex region Y, a region on the Y chromosome that determines the sex of the individual. SRY is necessary and…