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).
PYY
A hormone concerned with hunger and the lack of hunger (satiety). Soon after eating, PYY is secreted into the blood by cells lining the lower small intestine (the ileum) and the colon. The release of PYY begins before nutrients arrive in…
Read the definitionRandom terms
Show more- Susceptibility genes, breast cancer Inherited factors that predispose to breast cancer. Put otherwise, these genes make one more susceptible to…
- Anhidrosis Not sweating. From the Greek an- meaning a lack of + hidros meaning sweat = lack of sweat. The inability to…
- Bacille Calmette Guerin An effective immunization against tuberculosis. Commonly abbreviated BCG, it is an attenuated (weakened)…
- Osteoblast A cell that makes bone. It does so by producing a matrix that then becomes mineralized. Bone mass is…
- Rhinitis, allergic, seasonal Allergic rhinitis (hayfever) which occurs during a specific season
- Tunnel vision Loss of peripheral vision with retention of central vision, resulting in a constricted circular tunnel-like…
- PPD 1. Postpartum depression. 2. Purified protein derivative (the PPD skin test for tuberculosis)
- Mucositis Inflammation of the mucous membranes lining the digestive tract from the mouth on down to the anus. Mucositis…
- Endorphin One of the body's own painkillers, an opioid (morphine-like) chemical produced by the body that serves to…
- Spindle cell A cell that is tapered at both ends
- Oliva The olive, a structure in the brain
- Yeast syndrome The yeast Candida has been thought to cause a syndrome with a number of nonspecific problems including…