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).
Chargaff rule
The rule that in DNA there is always equality in quantity between the bases A and T and between the bases G and C. (A is adenine, T is thymine, G is guanine, and C is cytosine.) Named for the great Austrian-American biochemist Erwin…
Read the definitionRandom terms
Show more- Acou- Combining form relating to hearing. As in acoustic, otoacoustic emission test, and presbyacousia
- Minocycline A tetracycline antibiotic used to treat many different bacteria in urinary tract infections, acne, gonorrhea…
- Fever, dumdum Also called kala-azar, a chronic, potentially fatal parasitic disease of the viscera (the internal organs)…
- Annulus A ringlike structure, or any body part that is shaped like a ring. Applied to many small ring-shaped…
- Dieldrix Trade name of the insecticide dieldrin. See: Aldrin and dieldrin
- Dwarfism, achondroplastic A genetic disorder of bone growth, achondroplasia is the most common cause of short stature with…
- Arteriovenous malformation (AVM) A serious disease characterized by inflammation of the walls of the blood vessels (vasculitis). The vessels…
- GFP Green fluorescent protein
- Paraoxonase An enzyme associated with high-density lipoprotein (HDL) that is believed to protect against the oxidation of…
- Lytic Suffix having to do with lysis (destruction), as in hemolytic anemia, the excessive destruction of red blood…
- Skin color The color of skin which is complexly determined. Skin color depends on many factors including reddening…
- Enucleation The surgical removal of an eye. Enucleation is only done under drastic circumstances such as to remove a…