filtration rate
nounUK /fɪlˈtreɪʃən reɪt/
US /fɪlˈtreɪʃən reɪt/
The speed at which a liquid or gas passes through a filter.
The filtration rate of the water filter slowed down after a week of use.
RELATED WORDS
OTHER MEANINGS
2. In medicine, the rate at which the kidneys clean waste from the blood, often measured as glomerular filtration rate (GFR).
Doctors checked her glomerular filtration rate to see how well her kidneys were working.
3. In chemistry and engineering, the volume of fluid that passes through a filter per unit of time.
The lab measured the filtration rate to compare the two filter papers.
4. The pace at which particles are separated from a mixture by passing it through a porous material.
A higher filtration rate can sometimes let smaller particles slip through.