noun🔗ShareリトマスA dyestuff extracted from certain lichens, that changes color when exposed to pH levels greater than or less than certain critical levels."The science teacher used litmus paper to test if the liquid was an acid or a base, as the paper turned red in acids and blue in bases. "理科の先生は、液体が酸か塩基かを調べるためにリトマス試験紙を使用しました。試験紙は酸性では赤色に、塩基性では青色に変わるからです。chemistrysubstancematerialcolorscienceChat with AIVocabulary GamePractice Reading
noun🔗Shareリトマス試験紙、リトマス試験A simple test of acidity in a liquid using litmus, usually in the form of litmus paper."The science student used litmus paper to check if the liquid was an acid. "科学の生徒は、液体が酸性かどうかを調べるためにリトマス試験紙を使用しました。chemistryscienceChat with AIVocabulary GamePractice Reading
noun🔗Share試金石、リトマス試験A simple test of any attribute; a litmus test."The ability to stay calm under pressure is a litmus test for success in this demanding job. "プレッシャーの下で冷静さを保つ能力は、この要求の厳しい仕事での成功のための試金石です。attitudequalityChat with AIVocabulary GamePractice Reading
