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).
Immunity, active
Immunity, active: The production of antibodies against a specific agent by the immune system. Active immunity can be acquired in two ways, by contracting an infectious disease such as chickenpox or by receiving a vaccination such as…
Read the definitionRandom terms
Show more- Syncope, heat Sudden dizziness or fainting experienced after exercising in the heat. The skin appears pale and sweaty but…
- Pneumonic plague Infection of the lungs by Yersina pestis, the bacterial agent that causes the plague, a disease of animals…
- Spindle neuron A large neuron tapered at both ends that is only found in humans and great apes and so is thought to be a…
- Drugs, anti-angiogenesis These drugs, which include angiostatin and Endostatin, halt the process of developing new blood vessels…
- GFP Green fluorescent protein
- Secretin A hormone made by glands in the small intestine that acts to stimulate pancreatic secretions. Commercially…
- Xenobiotic Natural substances that are foreign to the body
- Gluten enteropathy A condition, also called celiac sprue, in which the absorption of food nutrients through the small intestine…
- Glenn shunt A surgical operation for children born with cyanotic heart disease ('blue babies'), in which a large vein…
- Tritium Hydrogen-3, an isotope of hydrogen. Tritium is a long-lived weak emitter of radiation and can be easily…
- Ad lib Abbreviation for the Latin 'ad libitum' meaning 'at pleasure' and 'at one's pleasure, as much as one desires…
- Chemical menopause Menopause: Menopause induced by chemotherapy or other chemicals or medications. Chemical menopause is a type…