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).
Dia-
Prefix taken straight from the Greek meaning 'through, throughout, completely' as in diachronic, diagnosis, dialysis, etc. Dia- should not be confused with the prefix di- which has a wholly different meaning
Read the definitionRandom terms
Show more- Qualify In medicine, to finish training. One of the first women to receive a medical degree (albeit pretending to be…
- Molecule The smallest unit of a substance that can exist alone and retain the character of that substance.
- SPD calcinosis Striopallidodentate (SPD) calcinosis, a condition first described in 1930 by T. Fahr and therefore called…
- Crack (drug) The street name given to cocaine that has been processed from cocaine hydrochloride to a ready-to-use free…
- Mouth mirror A little mirror on a rod that is used to examine the teeth and other structures within the mouth
- DNA, satellite DNA that contains many tandem (not inverted) repeats of a short basic repeating unit. Satellite DNA is…
- Appendix cancer A malignancy of the appendix, accounting for about 1 in 200 of all gastrointestinal malignancies. Although…
- Jet lag Jet lag: A temporary disorder that causes fatigue, insomnia, and other symptoms as a result of rapid air…
- Bell, Sir Charles See: Bell, Charles
- Pneumocyte One of the cells lining the alveoli (the air sacs) in the lung. The alveoli are, in fact, lined with two…
- MCAF Monocyte chemotactic and activating factor. See: MPC1
- OSA (obstructive sleep apnea) See: Oscillopsia.