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).
Nerve pathways, visual
The optic nerves serving the eyes join behind the eyes just in front of the pituitary gland to form a cross-shaped structure called the optic chiasma. Within the optic chiasma some of the nerve fibers cross. The fibers from the nasal…
Read the definitionRandom terms
Show more- Sensation In medicine and physiology, sensation refers to the registration of an incoming (afferent) nerve impulse in…
- Insufficiency, small intestine See: Short bowel syndrome
- Microscopy, cryo-electron See: Cryo-electron microscopy
- MGy Abbreviation for milligray
- Tilt-table test Tilt-table test: Tilt-table testing involves placing the patient on a table with a foot-support. The table is…
- Corneal dystrophy, Cogan A disorder in which the cornea (the normally clear front window of the eye) shows grayish fingerprint lines…
- Dystrophica myotonia 2 See: Myotonic dystrophy type 2
- HIV Acronym for the Human Immunodeficiency Virus, the cause of AIDS (acquired immunodeficiency syndrome). HIV has…
- Macules Small circumscribed changes in the color of skin that are neither raised (elevated) nor depressed. Macules…
- Paraquat A toxic chemical widely used as an herbicide (plant killer), primarily for weed and grass control. Paraquat…
- Sagittal A crucial large vein that goes over the top of the skull from front to back and then splits to take blood…
- Classification of diseases See: Disease nomenclature