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).
AST
1. Aspartate aminotransferase, an enzyme normally present in liver and heart cells. AST is released into blood when the liver or heart is damaged. The blood AST levels are thus elevated with liver damage (for example, from viral hepatitis)…
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Show more- Joint, atlas and axis The joint between the atlas and axis bones. The atlas is the first cervical (neck) vertebra which is just…
- Mesial 1. Toward the middle. As, for example, a mesial temporal lobe structure.2. In dentistry, toward the middle of…
- EOG Electro-oculography. A type of electrophysiologic retinal testing
- Serving size 1. The portion of food used as a reference on the nutrition label of that food.2. The recommended portion of…
- Stepmother The wife of a man who had a child by another women. See: Novercal
- Syndactyly, complete A condition in which fingers or toes are completely joined together, with the connection extending from the…
- Unstable diabetes A type of diabetes when a person's blood glucose (sugar) level often swings quickly from high to low and from…
- Xerostomia Dry mouth. The condition of not having enough saliva to keep the mouth wet due to inadequate function of the…
- Vaginal hysterectomy Hysterectomy: Removal of the uterus through a surgical incision made within the vagina. With a vaginal…
- Keratitis, acanthamoeba See: Acanthamoeba keratitis
- Interval malignancy In mammography, a malignancy that becomes evident during the period between annual screening mammograms. The…
- Artificial insemination by husband (AIH) A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the…