# period

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**period of time**— noun an amount of time (Freq. 7) a time period of 30 years hastened the period of time of his recovery Picasso s blue period • Syn: ↑time period, ↑period • Hypernyms: ↑ …122

**Period-doubling bifurcation**— In mathematics, a Period doubling bifurcation in a dynamical system is a bifurcation in which the system switches to a new behavior with twice the period of the original system. The hallmark of this is a Floquet multiplier of 1. ExampleConsider… …123

**Period-after-opening symbol**— The period after opening symbol or PAO symbol is a graphic symbol that identifies the useful lifetime of a cosmetics product after its package has been opened for the first time. It depicts an open cosmetics pot and is used together with a… …124

**Period prevalence**— In epidemiology, Period prevalence is the proportion of the population with a given disease or condition over a specific period of time. It could describe how many people in a population had a cold over the cold season in 2006, for example.It is… …125

**Period of Adjustment**— Infobox Film name = Period of Adjustment image size = caption = Theatrical film poster director = George Roy Hill producer = Lawrence Weingarten writer = Isobel Lennart Tennessee Williams narrator = starring = Anthony Franciosa Jane Fonda Jim… …126

**Period 3 element**— A period 3 element is one of the chemical elements in the third row (or period ) of the periodic table of the elements.These are: MnemonicA mnemonic (attributed to Richard Feynman)fact|date=May 2008 for the elements of Period 3 (more precisely,… …127

**Period mapping**— In mathematics, in the field of algebraic geometry, the period mapping associates to a family of algebraic manifolds a family of Hodge structures. The family of Hodge structures is given concretely by matrices of integrals. To illustrate these… …128

**Period Of Indemnity**— The length of time for which benefits are payable under an insurance policy. Also used to denote the time period for which indemnity or compensation is payable under a business interruption policy. The period of indemnity is usually the most… …