Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of touchstone is as below...

Touch :: Touch (v.) A touchstone; hence, stone of the sort used for touchstone..

Touchstone :: Touchstone (n.) Any test or criterion by which the qualities of a thing are tried.

Tuch :: Tuch (n.) A dark-colored kind of marble; touchstone.

Test :: Test (n.) That with which anything is compared for proof of its genuineness; a touchstone; a standard.

Touchstone :: Touchstone (n.) Lydian stone; basanite; -- so called because used to test the purity of gold and silver by the streak which is left upon the stone when it is rubbed by the metal. See Basanite.

Touch :: Touch (v. t.) To try; to prove, as with a touchstone..

Touch-needle :: Touch-needle (n.) 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..

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