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).
Aqueous humor
In medicine, humor refers to a fluid (or semifluid) substance. Thus, the aqueous humor is the fluid normally present in the front and rear chambers of the eye. It is a clear, watery fluid that flows between and nourishes the lens and the…
Read the definitionRandom terms
Show more- Operon A set of genes transcribed under the control of an operator gene. More specifically, an operon is a segment…
- Sirolimus A naturally occurring substance discovered in a soil sample from Easter Island. Sirolimus was initially…
- Sudden infant death with dysgenesis of testes Abbreviated SIDDT. For more, see: SIDDT
- Syndrome, Boerhaave's See: de Lange syndrome.
- Tone deafness The inability to recognize musical tones or reproduce them. Also called amusia
- Antiviral An agent that kills a virus or that suppresses its ability to replicate and, hence, inhibits its capability…
- Familial Parkinson disease type 7 A familial form of Parkinson disease inherited in an autosomal recessive manner due to mutation in the DJ1…
- Gallbladder A pear-shaped organ just below the liver that stores the bile secreted by the liver. During a fatty meal, the…
- Hematoma, epidural See: Epidural hematoma
- Vertical transmission Passage of a disease-causing agent (a pathogen) vertically from mother directly to baby during the perinatal…
- Vitamin K One of two naturally occurring fat-soluble vitamins (vitamin K1 and vitamin K2) needed for the clotting of…
- Laryngeal dystonia See: Spasmodic dysphonia