Psilon
A Psilon is a unit of length that is equal to 44 manly strides or, more precisely, 0.025 miles or 40 meters. The Psilon is best known as the official unit of measurement during the censusing of plants in the genus Silene in a metapopulation surrounding Mountain Lake Biological Station in Giles County, Virginia.
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Etymology: Derived from the Latin Silene.
