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).
Optic nerve head
The circular area in the back of the inside of the eye where the optic nerve connects to the retina
Read the definitionRandom terms
Show more- Buschke scleredema See: Scleredema
- Dwarfism, achondroplastic A genetic disorder of bone growth, achondroplasia is the most common cause of short stature with…
- SEMG Surface EMG
- Varix An enlarged and convoluted vein, artery or lymphatic vessel.
- Paracentric chromosome inversion A basic type of chromosome rearrangement. A segment that does not include the centromere (and so is…
- Gastric stapling A surgical procedure that converts the upper part of the stomach into a very small pouch by stapling portions…
- AKU Alkaptonuria
- Positional cloning Cloning a gene based simply on knowing its position in the genome without any idea of the function of that…
- Unicellular Consisting of one cell only. Some organisms, such as bacteria, are unicellular. Unicellular is in contrast to…
- Hypoplasia Underdevelopment or incomplete development of a tissue or organ. For example, there can be hypoplasia…
- Coagulation In medicine, the clotting of blood. The process by which the blood clots to form solid masses, or clots. More…
- Zygomatic arch The part of the temporal bone of the skull that forms the prominence of the cheek. The zygomatic arch is also…