"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 b"
"a vertical array of numbers or other information"
"anything that approximates the shape of a column or tower"
"an article giving opinions or perspectives"
"a page or text that is vertically divided"
"any tubular or pillar-like supporting structure in the body"