| potassium | (n) a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite, Syn. atomic number 19, K |
| 钾 | [钾 / 鉀] potassium K, alkali metal 鹼性金屬|碱性金属 with atomic number 19, See also: 鹼性金屬, 碱性金属 #9,022 [Add to Longdo] |