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Definition of Column density
1. Noun. The total amount per unit area of a material suspended in a fluid or in a cloud in space, measured along the length of a column. ¹
¹ Source: wiktionary.com
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1. Noun. The total amount per unit area of a material suspended in a fluid or in a cloud in space, measured along the length of a column. ¹
¹ Source: wiktionary.com