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).
Periphery
1. The outside or surface of a structure; the portion outside the central region. 2. The circumference of a circle or other geometric figure.
Read the definitionRandom terms
Show more- Clinical disease A disease with clinical signs and symptoms that are recognizable. As distinct from a subclinical illness…
- Dropsy An old term for the swelling of soft tissues due to the accumulation of excess water. In years gone by, a…
- Fraternal twin Twin: A twin who have shared a common uterine environment with its sibling. Fraternal twins are due to the…
- Transplant, bone marrow See: Bone marrow transplant
- Fire ants Originally from S. America. Among the worst insect pests ever to invade the US. Red or yellowish ants of…
- Guthrie test A simple screening blood test for phenylketonuria (PKU). The Guthrie test was the original impetus to newborn…
- Multislice computed tomography See: Multidetector computed tomography
- Yawn Involuntary opening of the mouth, often caused by suggestion. Yawning is characterized by breathing first…
- Cholecyst The gallbladder. The word cholecyst is not much used today but it figures into a number of other terms to do…
- Dysphonia, spastic See: Spasmodic dysphonia
- Laryngeal Having to do with the larynx (the voice box). NTER>
- Mucus A thick slippery fluid produced by the membranes lining certain organs such as the nose, mouth, throat, and…