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).
T-helper cell
A type of T cell that provides help to other cells in the immune response by recognizing foreign antigens and secreting substances called cytokines that activate T and B cells. T-helper cells fall into two main classes: those that activate…
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Show more- Proteins, G These molecules have been described as 'biological traffic lights.' Located inside the cell, G proteins are…
- Plasmapheresis A procedure designed to deplete the body of blood plasma (the liquid part of the blood) without depleting the…
- Sample, random A group selected randomly, solely by chance
- Cisplatin An anticancer drug that belongs to the family of drugs called platinum compounds. Cisplatin is used in the…
- PYY A hormone concerned with hunger and the lack of hunger (satiety). Soon after eating, PYY is secreted into the…
- Fainting (syncope) Fainting (syncope): Partial or complete loss of consciousness with interruption of awareness of oneself and…
- Yeast infection Yeast infection: Overgrowth of yeast can affect the skin (yeast rash), mouth (thrush), digestive tract…
- Perichondrium A dense membrane composed of fibrous connective tissue that closely wraps (invests) all cartilage, except the…
- Biomarker A biochemical feature or facet that can be used to measure the progress of disease or the effects of treatment
- Cancer, testicles Cancer of the male sex organ (testicle) that normally produces the hormone testosterone. One of the most…
- Parry's disease Toxic multinodular goiter. Named for the English physician Caleb Hillier Parry (1755-1822). also called…
- Sarcoma, Ewing Sarcoma, Ewing: A type of bone tumor that occurs in children and adolescents, most often in the large bones…