Daily Almanac for
Feb 12, 2012
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Dictionary


sig•ma



Pronunciation: (sig'mu), [key]
—n.
1. the 18th letter of the Greek alphabet: Σ, σ, ς.
2. the consonant sound represented by this letter.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

siglossigma particle
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