20 : Idioms & Phrases
atomic number 20
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noun a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
calcium; Ca.
WordNet
january 20
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noun a Christian holy day
Saint Agnes's Eve.
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noun the day designated for inauguration of the United States President
Inauguration Day.
WordNet
k-dur 20
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noun salt of potassium (KCl) (trade names K-Dur 20, Kaochlor and K-lor and Klorvess and K-lyte); taken in tablet form to treat potassium deficiency
K-lyte; Kaochlor; potassium muriate; potash muriate; K-lor; potassium chloride; Klorvess.