noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A small bar of gold and silver, either pure, or alloyed in some known proportion with copper, for testing the purity of gold or silver articles by comparison of the streaks made by the article and the bar on a touchstone.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.