Touch"-nee`dle (?), n. (Metal.) A
small bar of gold and silver, either pure, or alloyed in some known
proportion with copper, for trying the purity of articles of gold or silver
by comparison of the streaks made by the article and the bar on a
touchstone.
Touch"-nee`dle (?), n. (Metal.) A
small bar of gold and silver, either pure, or alloyed in some known
proportion with copper, for trying the purity of articles of gold or silver
by comparison of the streaks made by the article and the bar on a
touchstone.