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.
- 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).
Prophylactic cranial irradiation
Radiation therapy to the head intended to prevent cancer from spreading (metastasizing) to the brain.
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Show more- Ames test A test developed in 1974 by Bruce N. Ames for identifying possible carcinogens by studying their mutagenic…
- Multicellular Consisting of more than one cell. Humans are multicellular and have been estimated to possess 100,000 billion…
- Scan, CT Pictures of structures within the body created by a computer that takes the data from multiple X-ray images…
- Scrubs A protective garment designed to be worn by the doctor, nurse, and others in the operating room. The garment…
- Autosomal chromosome Any chromosome except for the sex chromosomes. Humans have 44 autosomal chromosomes, or autosomes
- Chlamydia trachomatis A bacterium that causes a disease called trachoma that results in blindness so frequently that it places a…
- Activase Brand name of alteplase, a tissue plasminogen activator made by recombinant DNA technology. See: Tissue…
- Keratosis, seborrheic A benign skin disorder due to excessive growth of the top layer of skin cells, usually found in persons over…
- Blurred vision Lack of sharpness of vision with, as a result, the inability to see fine detail. Blurred vision can occur…
- Midwife, empirical See: Empirical midwife.
- Drain, Jackson Pratt See: JP drain
- Calcaneus The calcaneus is the heel bone. It is also called the os calcis. The calcaneus is a more or less rectangular…