litmus test in Dutch

(chemistry) A simple, binary test for the acidity or alkalinity of a substance, using litmus paper.

(figuratively, by extension) Any test which produces a binary, decisive result (for example, determining whether to appoint someone to a job) by measuring a single indicator.

(figuratively, by extension) Any test which produces a binary, decisive result (for example, determining whether to appoint someone to a job) by measuring a single indicator.