LITMUS


Meaning of LITMUS in English

[ 'lɪtməs ]

■ noun a dye obtained from certain lichens that is red under acid conditions and blue under alkaline conditions.

Origin

ME: from ON lit-mosi , from litr 'dye' + mosi 'moss'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.