1.
volcanic ash
Fine particles of rock and mineral fragments ejected from a volcano during an eruption.
火山灰 refers to fine particles of rock ejected during a volcanic eruption. A compound of 火山 (volcano) + 灰 (ash). The reading uses 灰, the on'yomi.
Common collocations
- 火山灰が降る: volcanic ash falls
- 火山灰に覆われる: to be covered in volcanic ash
- 火山灰を取り除く: to remove volcanic ash
- 火山灰が積もる: volcanic ash accumulates
Cultural note
Japan has many active volcanoes, so 火山灰 is a practical concern. In 鹿児島, 桜島 regularly deposits ash, and special collection bags (克灰袋) are distributed by the city.