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The pica is a typographic unit of measure corresponding to approximately 1⁄6 of an inch, or 1⁄72 of a foot. One pica is further divided into 12 points.
Exameter or examatre is a unit of length equal to 1018meters. This unit is a combination of the metric prefix exa (E) and the SI unit of length meter (m) and its abbreviated as "Em". Plural name is exameters.