English dictionary
countermark
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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A mark or token added to those already existing, in order to afford security or proof; as, an additional or special mark put upon a package of goods belonging to several persons, that it may not be opened except in the presence of all; a mark added to that of an artificer of gold or silver work by the Goldsmiths' Company of London, to attest the standard quality of the gold or silver; a mark added to an ancient coin or medal, to show either its change of value or that it was taken from an enemy.
Source: webster1913
verb
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To apply a countermark to; as, to <i>countermark</i> silverware; to <i>countermark</i> a horse's teeth.
Source: webster1913