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).
SPECT scan
Single Photon Emission Computed Tomography, a nuclear medicine procedure in which a gamma camera rotates around the patient and takes pictures from many angles, which a computer then uses to form a tomographic (cross-sectional) image. The…
Read the definitionRandom terms
Show more- Kinetics Kinetics (with an 's' at the end) refers to the rate of change in a biochemical (or other) reaction, the…
- Pinosome A tiny fluid-filled vesicle (bubble) within a cell. Pinosomes are created in the process of pinocytosis in…
- EBV Epstein-Barr virus, best known as the cause of infectious mononucleosis ('mono'). Infection with EBV is…
- Heartworm Dirofilaria immitis. A common parasite of dogs in many parts of the world that occurs in other animals…
- Strain, lumbar See: Lumbar strain.
- Macrovascular Pertaining to the macrovasculature, the portion of the vasculature of the body comprising the larger vessels…
- Serum hepatitis Hepatitis B.
- Blue baby operation A surgical procedure for a baby who is cyanotic (blue) due to a heart malformation that prevents blood from…
- Fear of blushing An abnormal and persistent fear of blushing. Sufferers of this fear experience undue anxiety even though they…
- Lecithinase See: Phospholipase
- Exhaustion, heat A warning that the body is getting too hot. The person may be thirsty, giddy, weak, uncoordinated, nauseous…
- Acaricide An agent, usually a chemical, that kills mites. This class of pesticides is large and includes antibiotic…