from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Taking over 200 years to complete an orbit, especially said of comets


Sorry, no etymologies found.


  • Monsoon rains were 11% above the long-period average until June 21.

    India Grain Export Prospects Fade

  • Last week, the weather office forecast that monsoon rainfall this year is likely to be 95% of the long-period average, lower than the 98% it projected in April.

    Monsoon Covers Most of India

  • The Kuiper belt, domain of icy wandering dwarf planets like Pluto and Eris, extends perhaps another 30AU, before merging into the much more tenuous Hills cloud and Oort cloud, domain of loosely coupled long-period comets. » The High Frontier, Redux

  • While the rainfall has been above the long-period average, there are some problems in spatial distribution in central and western India.

    India Monsoon 3% Above Average

  • The average rainfall over the past 50 years, or the long-period average, is 89 centimeters.

    India Monsoon Likely Normal

  • NEW DELHI –India is on track to receive normal monsoon rain for a second straight year, with the June-September rainfalls expected to be 98% of the long-period average, Earth Sciences Minister Pawan Kumar Bansal said Tuesday.

    India Monsoon Likely Normal

  • NEW DELHI – India's monsoon rainfall is unlikely to exceed the weather department's forecast of 98% of the long-period average this year, and, if at all, may be slightly lower because of La Nina receding, weather officials said Thursday.

    India Monsoon May Dip Below Forecast

  • Intriguingly, long-period gravitational waves are preferentially generated by pairs of the most massive black holes — the giant beasts that lie at the center of galaxies.

    New Pulsar "Clocks" Will Aid Gravitational Wave Detection | Universe Today

  • In any case, getting a confident handle on all potentially deadly long-period comets is, today, not possible nor in the forseeable future either.

    WISE Bags its First Near-Earth Asteroid | Universe Today

  • The pulsar technique, Jenet says, is best suited for recording long-period gravitational waves — those with a period of months to years — because those waves would induce the largest fluctuations in the arrival time of the radio waves.

    New Pulsar "Clocks" Will Aid Gravitational Wave Detection | Universe Today


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