リトマスリトマスFreq.FrequencyTop 100,000Meanings1nounlitmusRefers to the dye used in chemistry to test acidity; commonly appears in compounds like リトマス試験紙 (litmus paper).リトマス試し験けん紙しで酸さん性せいかアルカリ性せいかを調しらべる。Test whether it is acidic or alkaline with litmus paper.