filter paper
Technical term for paper used in filtration, common in laboratory and industrial settings.
In the experiment, we filtered the solution using filter paper.
paper electrophoresis
paper chromatography
Standard spelling using the simplified kanji ろ.
Traditional kanji spelling; less common but still seen in technical contexts.
Variant kanji form; rarely used.
Compound of ろ (filter) and 紙 (paper). The kanji 濾 is the traditional character for 'filter', while ろ is a simplified form.