filter paper

noun

: porous unsized paper used especially for filtering

Examples of filter paper in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Whereas regular blood tests are drawn directly from athletes, DBS testing is a process in which drops of blood from small skin pricks are dried on filter paper and shipped to labs for remote analysis. Matt Moret, New York Times, 3 Apr. 2026 Area monitors suck particulate emitted by power plants onto filter paper, which can be analyzed to see whether or not there has been an uncontrolled release of radiation. Chris Baraniuk, Wired News, 15 Dec. 2025 The aircraft is equipped with external flow-through devices to collect particulates on filter paper and a compressor system for whole air samples collected in holding spheres. Ryan Chan, MSNBC Newsweek, 5 Dec. 2025 Han was accused of smuggling in filter paper containing plasmids on Sept. 23 and March 5 and petri dishes containg C. elegans with genetic modifications on Sept. 29, according to an information filed in court June 26. Christina Hall, Freep.com, 19 Aug. 2025 See All Example Sentences for filter paper

Word History

First Known Use

1670, in the meaning defined above

Time Traveler
The first known use of filter paper was in 1670

Browse Nearby Words

Cite this Entry

“Filter paper.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/filter%20paper. Accessed 23 Apr. 2026.

Kids Definition

filter paper

noun
: porous paper used especially for filtering

Medical Definition

filter paper

noun
: porous unsized paper used especially for filtering
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