filter paper

American  

noun

1. porous paper used in filtering.

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filter paper British  

noun

1. a porous paper used for filtering liquids

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Etymology

Origin of filter paper

First recorded in 1890–95

Example Sentences

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

From Science Daily

Today's options for portable water filtration of tiny particles mostly consist of filter paper and microporous membranes.

From Science Daily

Blood obtained by pricking a baby’s heel was collected on filter paper and tested for phenylketonuria, a rare metabolic condition that, if untreated, causes intellectual disability.

From Scientific American

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

This involves placing a piece of filter paper for 60 seconds between a dog’s lower eyelid and cornea.

From New York Times