Perigean tides
Perigean Per`i*ge"an, a. Pertaining to the perigee. [1913 Webster]

{Perigean tides}, those spring tides which occur soon after the moon passes her perigee. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Perigean — Per i*ge an, a. Pertaining to the perigee. [1913 Webster] {Perigean tides}, those spring tides which occur soon after the moon passes her perigee. [1913 Webster] …   The Collaborative International Dictionary of English

  • Perigean Spring Tides — A perigean spring tide is when the moon is closest to the Earth during the spring tide. The moon s orbit around the Earth is elliptical which causes the moon to be closer to the Earth and farther away at different times. The moon and the sun are… …   Wikipedia

  • perigean range — the average semi diurnal range occurring at the time of perigean tides; larger than the mean range where the type of tide is either semi diurnal or mixed and of no practical significance when the tide is diurnal …   Dictionary of ichthyology

  • perigean tide — noun : any of the spring tides that occur soon after the moon passes her perigee * * * an ocean tide that occurs in the spring, when the moon is at its perigee …   Useful english dictionary

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  • Oceanography — For the scientific journal, see Oceanography (journal). Thermohaline circulation Oceanography (compound of the Greek words ωκεανός meaning ocean and γράφω meaning to write ), also called oceanology or marine science, is the branch of Earth… …   Wikipedia

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