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).
Hair follicle
A sac from which a hair grows and into which the sebaceous (oil) glands open. The follicle is lined by cells derived from the epidermal (outside) layer of the skin. Each follicle normally goes through a five-year cycle of growth and rest…
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Show more- Rotavirus Rotavirus (RV): A leading cause of severe winter diarrhea in young children, RV each year causes an estimated…
- Musicomania A singular passion for music that is excessive and beyond all reason. From the French musicomanie, from music…
- Translocation, reciprocal A type of chromosome rearrangement involving the exchange of chromosome segments between two chromosomes that…
- Papilloma A small solid benign tumor with a clear-cut border that projects above the surrounding tissue
- Transfusion The transfer of blood or blood products from one person (the donor) into another person (the recipient's)…
- Nerve, optic The optic nerve connects the eye to the brain. The optic nerve carries the impulses formed by the retina. The…
- Status epilepticus An epileptic seizure that lasts more than 30 minutes; a constant or near-constant state of having seizures…
- Zoonotic disease Any disease that is spread from animals to people. There are many known zoonotic diseases, some of them very…
- Chlorinated camphene See: Toxaphene
- Cancer, lymphoma, Hodgkin (adult) A type of lymphoma (cancer of the lymphatic system). The most common symptom of Hodgkin disease is a painless…
- Gliosis A process leading to scars in the central nervous system that involves the production of a dense fibrous…
- Ph.D. Doctor of Philosophy. (From the New Latin, philosophiae doctor). Ph.D.'s are involved in clinical care (as in…