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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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- Monilia A yeast-like fungus now called Candida.
- Leukocyte, granular A type of white blood cell filled with microscopic granules (tiny sacs) containing enzymes that digest…
- Deficiency, LCHAD Acute fatty liver of pregnancy (AFLP) has been found to be associated in some cases with an abnormality of…
- Lambert-Eaton myasthenic syndrome An autoimmune disease characterized by weakness and fatigue of the proximal muscles (those near the trunk)…
- Reaction, polymerase chain See: Vasovagal reaction.
- Neurogenic shock A type of shock (a life-threatening medical condition in which there is insufficient blood flow throughout…
- Nature (journal) The name of a venerable British scientific journal that has over the past century or so published much of…
- Refraction In ophthalmology, the bending of light that takes place within the human eye. Refractive errors include…
- Enterospasm A painful, intense contraction of the intestine
- Contractions, Braxton Hicks Irregular contractions of the womb (the uterus) occurring towards the middle of pregnancy in the first…
- Retropubic prostatectomy Surgical removal of the prostate through an incision in the abdomen. NTER>
- Azoospermia No sperm at all. The ejaculate is completely devoid of sperm. By contrast, in oligospermia (literally, few…