Definition of smalt in English:

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Pronunciation: /smôlt/


chiefly historical
1Glass colored blue with cobalt oxide.
Example sentences
  • The blue colour of smalt derives from the addition of cobalt oxide to a potash glass melt during manufacture.
  • By that time also artificial blues had been discovered, smalt or cobalt blue which is cobalt aluminate in the 17th century, and then the famous Prussian blue, in 1704.
  • One pertinent example was an advertisement in the New-York Gazette in 1748 for blue smalt, just in from London.
1.1A pigment made by pulverizing smalt glass.
Example sentences
  • Eighteenth- and early nineteenth-century texts on smalt were also unhelpful, generally failing to describe how to apply it to large vertical surfaces.
  • He took a sample about one-half-inch square that went right down to the bare wood for perusal in the laboratory and discovered that what we had was smalt.
  • In the meantime, the only room that we know of here or in England completely treated with smalt is the Warner House's parlor bedchamber.


Mid 16th century: from French, from Italian smalto, of Germanic origin; related to smelt1.

Words that rhyme with smalt

assault, Balt, exalt, fault, halt, malt, salt, vault
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