filter paper
Paper used for filtration, such as in coffee making or laboratory work.
I use filter paper when brewing coffee.
Standard kanji spelling for filter paper.
Mixed kana-kanji spelling; less common but still used.
Abbreviated kanji form; rarely encountered.
Compound of 漉し (koshi, 'straining, filtering', from verb 漉す kosu) + 紙 (kami, 'paper'). The reading kami becomes gami due to rendaku.