toetssteen

== Dutch == === Etymology === From toetsen +‎ steen, calque of Middle French pierre de touche. === Pronunciation === IPA(key): /ˈtut(s).steːn/ Hyphenation: toets‧steen === Noun === toetssteen m (plural toetsstenen, diminutive toetssteentje n) touchstone [from 16th c.]