period

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period

period unit of time on the geologic timescale . Periods are shorter than an era and longer than an epoch. Periods are of variable length, generally lasting tens of millions of years, with characteristic fossils found preserved in the sediments deposited during the period. It is also used to designate a characteristic of geologic time, such as the glacial period.

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period

A Dictionary of Computing | 2004 | | Â© A Dictionary of Computing 2004, originally published by Oxford University Press 2004. (Hide copyright information) Copyright

period The time required for a periodic waveform – i.e. a waveform recurring at fixed intervals – to repeat itself.

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JOHN DAINTITH. "period." A Dictionary of Computing. 2004. Encyclopedia.com. 10 Nov. 2009 <http://www.encyclopedia.com>.

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