Daily Almanac for
Feb 16, 2012
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Dictionary


pe•ri•od•i•za•tion



Pronunciation: (pēr"ē-u-du-zā'shun), [key]
—n.
an act or instance of dividing a subject into historical eras for purposes of analysis and study.

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

periodideperiod-luminosity relation
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