| pentoxide | (n) an oxide containing five atoms of oxygen in the molecule |
| Pentoxide | n. [ Penta- + oxide. ] (Chem.) An oxide containing five atoms of oxygen in each molecule; |
| 酸化ヒ素;酸化砒素 | [さんかヒそ(酸化ヒ素);さんかひそ(酸化砒素), sanka hi so ( sanka hi moto ); sankahiso ( sanka hiso )] (n) (1) { chem } (See 亜ヒ酸・2) arsenic trioxide; white arsenic (As2O3); (2) arsenic pentoxide (As2O5) [Add to Longdo] |
| 酸化窒素 | [さんかちっそ, sankachisso] (n) nitrogen oxide (esp. nitric oxide, but also nitrous oxide, nitrogen dioxide, dinitrogen pentoxide, etc.) [Add to Longdo] |