filter paper disk
A disk-shaped piece of filter paper, used in laboratory settings for filtration or sample preparation.
In the experiment, we soaked the filter paper disk in the solution.
Standard spelling using the common abbreviation ろ紙 for filter paper.
Full kanji spelling; 濾 is less common and may be replaced by ろ in everyday writing.
Compound of ろ紙 (filter paper) and ディスク (disk), a straightforward technical term.