alkali

noun

any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
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
- bases include oxides and hydroxides of metals and ammonia
  塩基は金属とアンモニアの酸化物と水酸化物を含む
a mixture of soluble salts found in arid soils and some bodies of water
不毛な土地といくつかの水域で見られる可溶性塩類の混合物

detrimental to agriculture
農業に有害な