| Subject | English | Japanese |
| gen. | n large pyroclastic flow | 大火砕流 |
| gen. | n pyroclastic flow | 火災流 (type of volcanic eruption) |
| phys. | pyroclastic flow | 火山砕せつ流 (かざん・さいせつりゅう) |
| gen. | n pyroclastic flow | 火砕流 news1 nf07 (type of volcanic eruption) |
| gen. | pyroclastic flow plateau | 火砕流台地 |