Definitions from the Web
Term: Ion Pump
Description
An ion pump is a device that is used to move ions across a membrane against their concentration gradient, using energy from an external source such as electricity or ATP. It plays a crucial role in various biological processes and is also utilized in different industries.
Senses and Usages
- Noun - Biological Sense: In biology, an ion pump refers to a protein pump embedded in the cell membrane that selectively moves ions across the membrane to regulate cell functions. It helps in maintaining the ionic balance necessary for cellular activities. For example:
During depolarization, the sodium-potassium ion pump actively transports three sodium ions out of the cell for every two potassium ions it brings in.
- Noun - Industrial Sense: In industries, an ion pump refers to a device that removes ions from a gas or liquid, assisting in the creation of ultra-high vacuum conditions. It is commonly used in manufacturing processes and scientific research. For example:
The vacuum chamber was equipped with an ion pump to achieve the desired level of purity needed for semiconductor production.
- Verb - Local Sense: In local slang, "ion pump" can be used as a verb to describe the act of excessively using a mobile phone charger, often to the point of draining its battery.
John, stop ion pumping every time you visit my place! I'm tired of replacing my charger.
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