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Variationperiodicaladjectivehappening from time to time Examplea periodic review of the company's performance

Related information about periodic:
  1. Periodic Table of the Elements by WebElements
    Explore key information about the chemical elements through this periodic table.
  2. Dynamic Periodic Table
    Sep 30, 2012 ... Interactive Web 2.0 periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, search.
  3. Periodic | Define Periodic at
    recurring at intervals of time: periodic revivals of an interest in handicrafts. 2. occurring or appearing at regular intervals: periodic visits of a mail steamer to an ...
  4. Periodic function - Wikipedia, the free encyclopedia
    In mathematics, a periodic function is a function that repeats its values in regular intervals or periods. The most important examples are the trigonometric ...
  5. periodic - definition of periodic by the Free Online Dictionary ...
    pe·ri·od·ic (pîr - d k). adj. 1. Having or marked by repeated cycles. 2. Happening or appearing at regular intervals. 3. Recurring or reappearing from time to time; ...
  6. Periodic Table of Elements and Chemistry
    Award winning periodic table, with user-friendly element data and facts. Cool, online chemistry videos, dictionary, tools and forum.
  7. The Photographic Periodic Table of the Elements
    The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical elements.
  8. Periodic Table of Elements: Los Alamos National Laboratory
    The Chemistry Division's Periodic Table describes the history, properties, resources, uses, isotopes, forms, costs, and other information for each element.