A principal meridian is a meridian used for survey control in a large region.
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Famous quotes containing the words principal and/or meridian:
“It is perhaps the principal admirableness of the Gothic schools of architecture, that they receive the results of the labour of inferior minds; and out of fragments full of imperfection ... raise up a stately and unaccusable whole.”
—John Ruskin (1819–1900)
“to these
Hale dead and deathless do the women of the hill
Love for ever meridian through the courters’ trees
And the daughters of darkness flame like Fawkes fires still.”
—Dylan Thomas (1914–1953)