: porous unsized paper used especially for filtering
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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 The next step was to pour samples through a piece of filter paper, catching any cells left behind by creatures that had moved through the river.—Madeline Heim, jsonline.com, 24 July 2025 See All Example Sentences for filter paper