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filter paper

American  

noun

  1. porous paper used in filtering.


filter paper British  

noun

  1. a porous paper used for filtering liquids

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of filter paper

First recorded in 1890–95

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.

See Examples For:

They also collected urine samples on filter paper to measure estrogen and progesterone, allowing them to identify when ovulation occurred.

From Science Daily Dec. 14, 2025

For instance, Russia produces a lot of tea, Mr. Fedyakov said, but it imports the filter paper used in tea bags.

From New York Times Jan. 13, 2023

The scientists wiped the armpits of healthy people and dengue fever patients with an absorbent material, isolated the molecules that could become airborne, and dabbed them onto filter paper.

From Science Magazine Jun. 30, 2022

Those who are tested will be sent a finger prick to illicit a small sample of blood, which is then stored on a special filter paper.

From Fox News May 6, 2020

The insoluble portion remaining on the filter paper is washed with water until all the carbonate is dissolved.

From Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. by Thomssen, E. G.

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