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606

or six-o-six

[ siks-oh-siks ]
/ ˈsɪksˌoʊˈsɪks /
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noun
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Origin of 606

So called because it was the 606th compound prepared in a series of tests conducted c1910 by Paul Ehrlich
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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