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).
Optic glioma
A benign tumor on an optic nerve or the optic chiasm (the crossing of the two optic nerves). Optic gliomas are derived from glial cells and are classified as low-grade astrocytomas. They cause symptoms both by pressure and by destruction…
Read the definitionRandom terms
Show more- Stomach 1. The sac-shaped digestive organ that is located in the upper abdomen, under the ribs. The upper part of the…
- Prothrombin time A clotting test, the prothrombin time is done to test the integrity of part of the clotting scheme. The…
- Cataplexy A debilitating medical condition in which a person suddenly feels weak and collapses at moments of strong…
- Aminotransferase An enzyme that catalyzes the transfer of an amino group from a donor molecule to a recipient molecule. The…
- Surveillance and containment See: Ring vaccination
- Male breast cancer Male breast cancer: See: Breast cancer, male.
- Piercing Using a sharp instrument, usually a needle, to make a temporary or permanent hole through an earlobe or other…
- Sprain, metatarsophalangeal joint See: Metatarsophalangeal joint sprain
- Dysplasia, congenital hip The abnormal formation of the hip joint in which the ball at the top of the thighbone (the femoral head) is…
- Gerascophobia An abnormal and persistent fear of growing old. Sufferers of this fear experience undue anxiety about aging…
- Low blood pressure Low blood pressure: Any blood pressure that is below the normal expected for an individual in a given…
- Placental dystocia Difficulty delivering the placenta (the afterbirth). Dystocia comes from the Greek 'dys' meaning 'difficult…