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).
Radiotherapy, stereotactic
Radiation therapy in which a number of precisely aimed beams of ionizing radiation coming from different directions meet at a specific point, delivering the radiation treatment to that spot
Read the definitionRandom terms
Show more- Test, pupil dilation An examination that enables an eye care professional to see more of the retina, the light-sensitive layer of…
- Chromosome, metaphase See: Y chromosome
- Dengue hemorrhagic fever (DHF) Fever (DHF): A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal…
- Whitehead A familiar term for what is medically called a closed comedo. A comedo, the primary sign of acne, consists of…
- Alpha error The statistical error (said to be 'of the first kind' or type I) made in testing an hypothesis when it is…
- Radius In anatomy, the radius is the smaller of the two bones on the thumb side of the forearm. (The bigger one is…
- Hormone, TSH Stands for Thyroid Stimulating Hormone. Also known as thyrotropin
- Midgut volvulus See: Volvulus
- Pill In pharmacy, a medicinal substance in a small round or oval mass meant to be swallowed. Pills often contain a…
- Deoxyhemoglobin The form of hemoglobin without oxygen, the predominant protein in red blood cells. Hemoglobin forms an…
- Koplik's spots Little spots inside the mouth that are highly characteristic of the early phase of measles (rubeola). The…
- Macrocephaly, multiple lipomas, and hemangiomas Bannayan syndrome, a genetic disease characterized by macrocephaly (enlarged head), multiple lipomas (benign…