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Dictionary definition for: Column

1. (n) a line of (usually military) units following one after another

2. (n) a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands

3. (n) a linear array of numbers one above another

4. (n) anything tall and thin approximating the shape of a column or tower; "the test tube held a column of white powder" "a tower of dust rose above the horizon" "a thin pillar of smoke betrayed their campsite"

5. (n) an article giving opinions or perspectives

6. (n) a vertical structure standing alone and not supporting anything (as a monument or a column of air)

7. (n) (architeture) a tall cylindrical vertical upright and used to support a structure

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