ALL meanings of touchstone
touch·stone
T t - noun touchstone reference point 1
- noun touchstone a test or criterion for the qualities of a thing. 1
- noun touchstone a black siliceous stone formerly used to test the purity of gold and silver by the color of the streak produced on it by rubbing it with either metal. 1
- countable noun touchstone If you use one thing as a touchstone of another, you use it as a test or standard by which you judge the second thing. 0
- noun touchstone a criterion or standard by which judgment is made 0
- noun touchstone a hard dark siliceous stone, such as basalt or jasper, that is used to test the quality of gold and silver from the colour of the streak they produce on it 0
- noun touchstone a type of black stone formerly used to test the purity of gold or silver by the streak left on it when it was rubbed with the metal 0
- noun touchstone any test of genuineness or value 0