filter
noun
any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid or gas is passed to remove suspended impurities or to recover solids.
has been filtering
-
present perfect progressiveof filter (3rd person singular).present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Tepco has been filtering the contaminated water to remove isotopes, leaving only tritium, a radioactive isotope of hydrogen that is hard to separate.
From Reuters ● Aug. 24, 2023
Tepco has been filtering the contaminated water to remove radioactive isotopes, leaving only hard-to-remove tritium.
From Reuters ● Aug. 20, 2023
Tepco has been filtering the water to remove more than 60 radioactive substances, but the water will not be entirely radiation-free.
From BBC ● Jul. 13, 2023
Tepco has been filtering the contaminated water to remove isotopes, leaving only tritium, a radioactive isotope of hydrogen that is hard to separate from water.
From Reuters ● Jul. 4, 2023
Artist by artist, show by show, Ars Nova has been filtering into the mainstream.
From New York Times ● Mar. 13, 2019
