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).
Downregulation
An decrease in the number of receptors on the surface of target cells, making the cells less sensitive to a hormone or another agent. Some receptors can be rapidly down regulated.
Read the definitionRandom terms
Show more- Esophagogastric tamponade A procedure in which a balloon is inflated within the esophagus and stomach to apply pressure on bleeding…
- Phenomenon, phantom limb See Phantom limb syndrome
- Reflex, patellar tendon See: Knee jerk
- Disease, mad deer See Chronic wasting disease
- GALT The enzyme (galactose-1-phosphate uridyl transferase) lack of which causes the genetic metabolic disease…
- Rash, yeast diaper Rash, yeast diaper: Infection in the diaper area caused by a yeast formerly called Monilia and now called…
- Preclinical study A study to test a drug, procedure or other medical treatment in animals. The aim is to collect data in…
- Atrial flutter Well-organized but overly rapid contractions of the atrium of the heart (usually at a rate of 250-350…
- Ulcerative gingivitis This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Milk allergy, cow Casein and whey are the two major proteins of human milk and most milk-based formulas. Some (less than 8% of)…
- Generic drug >The chemical name of a drug. >A term referring to the chemical makeup of a drug rather than to the…
- Yeast syndrome The yeast Candida has been thought to cause a syndrome with a number of nonspecific problems including…