mediator
An object or substance by which something is mediated, such as
1. (Science: anatomy) A structure of the nervous system that transmits impulses eliciting a specific response.
2. (Science: chemistry) A chemical substance (transmitter substance) that induces activity in an excitable tissue, such as nerve or muscle, or
3. (Science: cell biology) A substance released from cells as the result of the interaction of antigen with antibody or by the action of antigen with a sensitised lymphocyte.
Dictionary > Mediators
You will also like...
Digestion and Absorption of Food
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..
New Zealand’s Biodiversity
Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..
Plant Meristems and Growth
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
Indicator Species and Endangered Species
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
Homeostatic Mechanisms and Cellular Communication
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..
Cell Biology
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..