Definitions

from The Century Dictionary.

  • Of or pertaining to the phenomenon of precession in general. See precession, 4.
  • Pertaining to or resulting from the precession of the equinoxes: as, precessional force.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Of or pertaining to pression.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of or pertaining to precession

Etymologies

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Examples

  • Thus astronomers must have made great progress in their science before they could select as a day for counting from, the epoch when the slow reeling motion of the earth (the so-called precessional motion) brought the Pleiades centrally south, at noon, at the time of the vernal equinox.

    Myths and Marvels of Astronomy 1862

  • When these blades rotate they create large gyroscopic forces sometimes called precessional forces.

    EarthToys Alternative Energy News 2009

  • In his Galactic Alignment theory, John Major Jenkins describes the coming 2012 event as the "precessional convergence of Milky Way and solstice sun."

    Primary sources of Maya history - part three 2008

  • In his Galactic Alignment theory, John Major Jenkins describes the coming 2012 event as the "precessional convergence of Milky Way and solstice sun."

    Primary sources of Maya history - part three 2008

  • The climate change in this period is generally believed to be associated with precessional changes in the distribution of solar radiation, which primarily affect land-sea temperature contrast, and give only a regional warming, plus an enhancement of certain monsoonal circulations.

    The Volokh Conspiracy » Economic Climate Change Denialism: 2009

  • Laskar, J. et.al., "Orbital, precessional, and insolation quantities for the Earth from -20 MYR to +10 MYR"; Astron.

    An Astronomical Perspective on Climate Change | Universe Today 2009

  • The interglacial thus lasts an additional precessional cycle, yielding a total duration of 28 kyr.

    Inconvenient Graphic « Climate Audit 2007

  • I thought of the great precessional cycle that the pole of the earth describes.

    The Time Machine, by H. G. Wells Herbert George 2006

  • Consider how long it took Milankovitch to calculate variation of insolation every year for 600,000 years for every 5° of latitude due to orbit, tilt and precessional changes.

    Letter to NAS « Climate Audit 2006

  • I thought of the great precessional cycle that the pole of the earth describes.

    Science Fiction Hall of Fame Various, 1973

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