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, SPECT
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- Morton's metatarsalgia See: Morton's neuroma
- Cell cloning The process of producing a group of cells (clones), all genetically identical, from a single ancestral cell.
- Angioid streaks Tiny breaks in the elastin-filled tissue in the back of the eye (retinae). These abnormalities are visible to…
- Binocular vision The ability to maintain visual focus on an object with both eyes, creating a single visual image. Lack of…
- Esophageal stricture, chronic A longstanding narrowing or closure of the normal opening of the swallowing tube leading to the stomach…
- Popcorn worker lung See: Popcorn worker's lung
- Vaccines Microbial preparations of killed or modified microorganisms that can stimulate an immune response in the body…
- David-Stickler syndrome See: Stickler syndrome
- Botulinum toxin A toxin produced by the bacterium Clostridium botulinum that is the most poisonous biological substance…
- Orthopedics The branch of surgery broadly concerned with the skeletal system (bones). Orthopedics is how this field of…
- Encapsulated Confined to a specific area; the tumor remains in a compact form
- ADH secretion, inappropriate The syndrome of inappropriate secretion of antidiuretic hormone (ADH) results in the inability to put out…