1 文書を見つけるための辞書。

• base, alkali
• 塩基, アルカリ
• any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"
• リトマス試験紙を青に変え、酸と反応して塩と水を作る水溶性の化合物