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1.
a line of (usually military) units following one after another
2.
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.
a linear array of numbers one above another
4.
anything tall and relatively thin that approximates the shape of a column or tower
the test tube held a column of white powder
5.
an article giving opinions or perspectives
6.
a vertical cylindrical structure standing alone and not supporting anything (such as a monument)
7.
(archicteture) a tall cylindrical vertical upright and used to support a structure
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