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).
Gray
A unit of absorbed radiation equal to the dose of one joule of energy absorbed per kilogram of matter, or 100 rad. The unit is named for the British physician L. Harold Gray (1905-1965), an authority on the use of radiation in the…
Read the definitionRandom terms
Show more- Colposcopy Colposcopy: A procedure in which a gynecologist uses a lighted magnifying instrument which is called a…
- Nymph A nymph is a stage in the life cycle of certain arthropods, as ticks and lice. (Not all nymphs are in Greek…
- Acetabulum The cup-shaped socket of the hip joint. In fact, in Latin an 'acetabulum' is cup, a vinegar cup. The…
- Vidian neuralgia A distinctive syndrome of headaches, better known today as cluster headache. There are two main clinical…
- Ileus, meconium Obstruction of the intestine (ileus) due to overly thick meconium, the dark sticky stuff that is normally…
- Posture The carriage of the body as a whole, the attitude of the body, or the position of the limbs (the arms and…
- Leishmania infection A parasitic disease, also called leishmaniasis, spread by the bite of sand flies infected with a protozoa…
- Sumatriptan Sumatriptan: A triptan drug for the treatment of migraine. Marketed under the brand name Imitrex.
- Central core disease of muscle One of the conditions that produces 'floppy baby' syndrome. CCD causes hypotonia (floppiness) in the newborn…
- Ventricular assist device A mechanical pump that takes over the function of the damaged ventricle of the heart and restores normal…
- Proctocele See: Rectocele
- Medical history 1. In clinical medicine, the patient's past and present which may contain clues bearing on their health past…