| 一酸化炭素 | [いっさんかたんそ, issankatanso] (n) คาร์บอนมอนอกไซด์, See also: R. carbon monoxide |
| 一山 | [いっさん;ひとやま, issan ; hitoyama] (n) a mountain; a pile (of something) [Add to Longdo] |
| 一散に;逸散に | [いっさんに, issanni] (adv) at top speed [Add to Longdo] |
| 一酸塩基 | [いっさんえんき, issan'enki] (n) monoacidic base [Add to Longdo] |
| 一酸化 | [いっさんか, issanka] (adj-na, n) monoxide [Add to Longdo] |
| 一酸化炭素 | [いっさんかたんそ, issankatanso] (n) carbon monoxide; (P) [Add to Longdo] |
| 一酸化炭素中毒 | [いっさんかたんそちゅうどく, issankatansochuudoku] (n) carbon monoxide poisoning [Add to Longdo] |
| 一酸化窒素 | [いっさんかちっそ, issankachisso] (n) nitric monoxide [Add to Longdo] |
| 一酸化二窒素 | [いっさんかにちっそ, issankanichisso] (n) dinitrogen oxide [Add to Longdo] |