the prime meridian

Definition of the prime meridian

  1. :  an imaginary line that runs from the North Pole to the South Pole through Greenwich, England

Word by Word Definitions

  1. :  the second of the canonical hours

    :  the first hour of the day usually considered either as 6 a.m. or the hour of sunrise

    :  the earliest stage

  1. :  first in time :  original

    :  of, relating to, or being a prime number — compare relatively prime

    :  having no polynomial factors other than itself and no monomial factors other than 1

  1. :  fill, load

    :  to prepare for firing by supplying with priming

    :  to insert a primer into (a cartridge case)

  1. :  the hour of noon :  midday

    :  a great circle of the celestial sphere passing through its poles and the zenith of a given place — see azimuth illustration

    :  a high point (as of development or prosperity)

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