MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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.
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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).
Trochlear nerve
The trochlear nerve controls the superior oblique muscle of the eye, one of the extraocular muscles, the muscles that move the eye. Paralysis of the trochlear nerve results in rotation of the eyeball upward and outward (and, therefore…
Read the definitionRandom terms
Show more- Cyanogen chloride See: Cyanide
- Embolism The obstruction of a blood vessel by a foreign substance or a blood clot blocking the vessel. Something…
- Trachea A tube-like portion of the breathing or 'respiratory' tract that connects the 'voice box' (larynx) with the…
- Normal range By convention, the normal range for whatever (a particular test, condition, symptom, behavior, etc.) is set…
- Syndrome, antiphospholipid antibody An immune disorder characterized by the presence of abnormal antibodies in the blood associated with abnormal…
- Acid reflux A common condition and an abnormal one in which acid in the stomach rises up into the esophagus. This occurs…
- Dyslipidemia A disorder of lipoprotein metabolism, including lipoprotein overproduction or deficiency. Dyslipidemias may…
- Unassisted childbirth Birth of a baby without the assistance of an obstetrician, midwife, or other health professional. This may be…
- Gay gene A gene located on the X chromosome which was alleged to determine male homosexuality. The 'gay gene' was…
- Colorectal adenoma and carcinoma 1 Abbreviated CRAC1. Also known as hereditary mixed polyposis syndrome. See: Hereditary mixed polyposis syndrome
- Autosomal dominant radial drusen See: Malattia leventinese
- Pulmonology The study and science of the anatomy, physiology, and pathology of the lungs. See also: Pulmonary medicine