12 : Idioms & Phrases
12-tone music
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noun a type of serial music introduced by Arnold Schoenberg; uses a tone row formed by the twelve semitones of the chromatic scale (and inverted or backward versions of the row)
12-tone music; twelve-tone music; twelve-tone system.
WordNet
12-tone system
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noun a type of serial music introduced by Arnold Schoenberg; uses a tone row formed by the twelve semitones of the chromatic scale (and inverted or backward versions of the row)
12-tone music; twelve-tone music; twelve-tone system.
WordNet
atomic number 12
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noun a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
Mg; magnesium.
WordNet
february 12
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noun the day on which President Abraham Lincoln is remembered
Lincoln's Birthday.
WordNet
october 12
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noun a legal holiday commemorating the discovery of America by Christopher Columbus
Columbus Day; Discovery Day.