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).
Radioactive tracer
A radioactive molecule that can be sent through the body's circulatory or urinary system, with its progress followed by a radiation-sensitive machine
Read the definitionRandom terms
Show more- Spina bifida occulta A bony defect in the vertebral column that causes a cleft in that column. The cleft remains covered by skin…
- Dilation, pupil This examination enables your eye care professional to see more of your retina, the light-sensitive layer of…
- Dirofilaria immitis The dog heartworm
- Aldosteronism Overproduction of the hormone aldosterone from the cortex (the outer layer) of the adrenal gland or a tumor…
- PCO 1. Abbreviation in medical records for 'Patient complains of.' 2. Abbreviation for polycystic ovary. See…
- EDS (excessive daytime sleepiness) A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as…
- Complementary DNA 1. Anemia at birth. 2. Synonym for Rh incompatibility.
- Representational oligonucleotide microarray The production of offspring. Reproduction need not be sexual. Yeast can reproduce by budding.
- Policy, Medigap See: Medigap policy>
- Keratitis, acanthamoeba See: Acanthamoeba keratitis
- Transplant, corneal See: Corneal transplant
- Cord 1. In anatomy, a long ropelike structure. 2. Short for the spinal cord or the umbilical cord