Definition of precessional in US English:

precessional

adjective

Physics
  • See precession

    • ‘In earlier talks I have argued that these cataclysmic floods were, in reality, massive changes in sea level brought about by polar instability, or by precessional wobble in the Earth's mode of spin.’
    • ‘So we are likely to see precessional magnetic switching used for phones and cameras in the near future.’
    • ‘Due to the precessional movements of both planets the alignment does not repeat precisely.’
    • ‘The rate of change in the direction of the rotational axis is the ratio of torque to angular momentum and so gives a value for the precessional constant.’
    • ‘That is, if some of the Earth's energy were to be diverted into a slightly larger precessional wobble, the rate of spin should slow down slightly as a consequence.’

Pronunciation

precessional

/prəˈsɛʃ(ə)n(ə)l//prəˈseSH(ə)n(ə)l/