Japanese symbol for “filtration”
濾過
ろか
Romaji: roka
filtration; filtering; percolation
In Japanese, filtration is 濾過, read ろか (roka).
Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.
Meanings
- n, vs, vt filtration; filtering; percolation
Written forms: 濾過、ろ過、沪過. Readings: ろか.
Kanji and stroke order
Related words
Words that share a kanji.
| Word | Reading | Meaning |
|---|---|---|
| 濾胞 | ろほう rohou | follicle (esp. an ovarian follicle) |
| 圧濾器 | あつろき atsuroki | filter press |
| 濾過器 | ろかき rokaki | strainer; colander; filter |
| 濾液 | ろえき roeki | filtrate |
| 濾水 | ろすい rosui | filtered water |
| 過去 | かこ kako | the past; bygone days |
| 過ぎ | すぎ sugi | past; after |
| 過程 | かてい katei | process; course; mechanism |
Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.