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).
Radiation oncology
Also called radiation therapy or radiotherapy, radiation oncology is the use of high-energy rays to damage cancer cells and stop them from growing and dividing. A specialist in radiation therapy is called a radiation oncologist, a…
Read the definitionRandom terms
Show more- Abducent nerve A small motor nerve that has one task: to supply a muscle called the lateral rectus muscle that moves the eye…
- Cysticercus The larval form of any of the Taenia tapeworms. The plural is cysticerci. Infection with cysticerci is…
- Multiple subpial transection A multiple subpial transect(MST) is a procedure is used to help control seizures that begin in areas of the…
- Hemangioma A birth irregularity where a localized tissue mass grows rich in small blood vessels. Capillary hemangiomas…
- Syndrome, complete androgen insensitivity A genetic disorder that makes XY fetuses insensitive (unresponsive) to androgens (male hormones). Instead…
- Deafness, congenital Deafness, congenital: Loss of hearing present at birth. Congenital deafness contrasts to acquired deafness…
- Transplantation genetics The field of biology and medicine relating to the genes that govern the acceptance or rejection of a…
- Paralysis, facial nerve Loss of voluntary movement of the muscles on one side of the face due to abnormal function of the facial…
- Rickettsial diseases The infectious diseases caused by the rickettsiae fall into 4 groups:(1) typhus: epidemic typhus…
- Snowmobile safety Snowmobiles pose a significant risk to children, adolescents and young adults. Head injuries are the leading…
- Angiokeratoma corporis diffusum universale See: Fabry disease
- Bar graph A visual display using bars to represent the relative size of different categories of a variable, with each…